技术领域technical field
本实用新型涉及激光技术领域，尤其涉及一种耗散孤子共振矩形脉冲的产生系统。The utility model relates to the field of laser technology, in particular to a system for generating a dissipative soliton resonance rectangular pulse.
背景技术Background technique
锁模脉冲光纤激光器在激光光谱学、医学、激光雷达、材料加工以及超连续谱产生等研究领域有重要的应用价值。锁模脉冲光纤激光器在不同的腔内色散分布特性下可以分别产生传统负色散孤子、展宽脉冲、自相似脉冲以及耗散孤子等光脉冲。在谐振腔内负色散和光纤非线性效应的平衡作用下，可以实现传统的负色散孤子锁模脉冲。在孤子面积定理的约束下，传统的负色散孤子脉冲能量往往被限制在0.1nJ量级。相比于传统负色散孤子，展宽脉冲、自相似脉冲和耗散孤子脉冲的能量要高一到两个数量级，然而受到脉冲分裂的限制，脉冲能量无法再进一步提高。Mode-locked pulsed fiber lasers have important application values in research fields such as laser spectroscopy, medicine, lidar, material processing, and supercontinuum generation. Mode-locked pulsed fiber lasers can generate traditional negative dispersion solitons, stretched pulses, self-similar pulses, and dissipative solitons under different intracavity dispersion characteristics. Under the balanced effect of negative dispersion in the resonator and fiber nonlinear effect, the traditional negative dispersion soliton mode-locked pulse can be realized. Under the constraints of the soliton area theorem, the traditional negative dispersion soliton pulse energy is often limited to the order of 0.1nJ. Compared with traditional negative dispersion solitons, the energy of stretched pulses, self-similar pulses and dissipative soliton pulses is one to two orders of magnitude higher. However, due to the limitation of pulse splitting, the pulse energy cannot be further increased.
目前的现有技术中，除了调Q和增益调制技术外，耗散孤子共振锁模技术也是一种产生高能量脉冲的方法。耗散孤子共振脉冲可以承受更高的非线性效应，有效的避免光脉冲分裂，理论上输出的耗散孤子共振脉冲的宽度和能量均可以随着泵浦功率的增大而无限增大，同时脉冲的强度保持不变。现有技术中直接从谐振腔输出的耗散孤子共振脉冲能量已能达到μJ量级。然而μJ量级的耗散孤子共振脉冲可能仍无法满足一些更高需求的领域产业，为了满足对更高脉冲能量的需求，研究高能量脉冲的产生方法很有必要。In the current prior art, in addition to the Q-switching and gain modulation techniques, the dissipative soliton resonance mode-locking technique is also a method for generating high-energy pulses. Dissipative soliton resonance pulses can withstand higher nonlinear effects and effectively avoid optical pulse splitting. Theoretically, the width and energy of the output dissipative soliton resonance pulses can increase infinitely with the increase of pump power, and at the same time The intensity of the pulse remains constant. In the prior art, the dissipative soliton resonance pulse energy output directly from the resonant cavity has reached the μJ level. However, the dissipative soliton resonance pulse of the μJ level may still not be able to meet some higher-demand industries. In order to meet the demand for higher pulse energy, it is necessary to study the generation method of high-energy pulses.
实用新型内容Utility model content
本申请提供了一种高能量耗散孤子共振矩形脉冲的产生系统，可以进一步的提高耗散孤子共振脉冲的能量，获得更高能级的耗散孤子共振脉冲。The present application provides a high-energy dissipative soliton resonance rectangular pulse generation system, which can further increase the energy of the dissipative soliton resonance pulse and obtain a higher energy level dissipative soliton resonance pulse.
解决现有技术中谐振腔产生的耗散孤子脉冲的能量偏低，无法更好地获取高能量的耗散孤子脉冲的技术问题。The invention solves the technical problem that the energy of the dissipated soliton pulse generated by the resonant cavity is relatively low and the high energy dissipated soliton pulse cannot be better obtained in the prior art.
本实用新型提供一种高能量耗散孤子共振矩形脉冲的产生系统，所述系统包括：基于非线性放大环形镜锁模技术的“9”字形谐振腔、双包层掺铥光纤预放大器及双包层掺铥光纤主功率放大器；The utility model provides a high-energy dissipative soliton resonant rectangular pulse generation system. The system includes: a "9"-shaped resonant cavity based on the nonlinear magnifying ring mirror mode-locking technology, a double-clad thulium-doped optical fiber pre-amplifier and a dual Cladding thulium-doped fiber main power amplifier;
所述“9”字形谐振腔与所述双包层掺铥光纤预放大器相连接，所述双包层掺铥光纤预放大器与所述双包层掺铥光纤主功率放大器相连接；The "9" shaped resonant cavity is connected with the double-clad thulium-doped fiber pre-amplifier, and the double-clad thulium-doped fiber pre-amplifier is connected with the double-clad thulium-doped fiber main power amplifier;
所述“9”字形谐振腔用于产生耗散孤子共振矩形脉冲，所述耗散孤子共振矩形脉冲经过所述双包层掺铥光纤预放大器进行预放大处理，并传输至所述双包层掺铥光纤主功率放大器，进行提高能量和放大功率，以获得高能量耗散孤子共振矩形脉冲。The "9"-shaped resonant cavity is used to generate dissipative soliton resonance rectangular pulses, and the dissipative soliton resonance rectangular pulses are pre-amplified by the double-clad thulium-doped fiber pre-amplifier and transmitted to the double-clad layer The thulium-doped fiber main power amplifier is used to increase energy and amplify power to obtain high-energy dissipation soliton resonance rectangular pulses.
在本实施中，所述“9”字形谐振腔包括：第一泵浦源、第一合束器、第一双包层掺铥光纤、高非线性光纤、单模光纤及偏振控制器；In this implementation, the "9"-shaped resonant cavity includes: a first pump source, a first beam combiner, a first double-clad thulium-doped fiber, a highly nonlinear fiber, a single-mode fiber, and a polarization controller;
所述第一泵浦源与所述第一合束器相连接，所述第一泵浦源用于输出预设的第一泵浦光；The first pumping source is connected to the first beam combiner, and the first pumping source is used to output preset first pumping light;
所述第一合束器与所述第一双包层掺铥光纤相连接，所述第一合束器用于将所述第一泵浦光耦合进所述第一双包层掺铥光纤；The first beam combiner is connected to the first double-clad thulium-doped optical fiber, and the first beam combiner is used to couple the first pump light into the first double-clad thulium-doped optical fiber;
所述第一双包层掺铥光纤用于为所述“9”字形谐振腔提供增益；The first double-clad thulium-doped fiber is used to provide gain for the "9" shaped resonator;
所述高非线性光纤与所述单模光纤相连接，所述高非线性光纤与所述单模光纤皆用于提高所述“9”字形谐振腔的非线性；The highly nonlinear optical fiber is connected to the single-mode optical fiber, and both the highly nonlinear optical fiber and the single-mode optical fiber are used to improve the nonlinearity of the "9"-shaped resonant cavity;
所述偏振控制器与所述单模光纤相连接，所述偏振控制器用于调整所述“9”字形谐振腔内的偏振态。The polarization controller is connected with the single-mode optical fiber, and the polarization controller is used to adjust the polarization state in the "9" shaped resonant cavity.
可选的，所述“9”字形谐振腔还包括：第一包层功率剥除器，所述第一包层功率剥除器分别与所述第一双包层掺铥光纤、所述高非线性光纤相连接，所述第一包层功率剥除器用于剥除所述第一双包层掺铥光纤中未被充分吸收的第一泵浦光。Optionally, the "9" shaped resonator further includes: a first cladding power stripper, the first cladding power stripper is connected to the first double-clad thulium-doped fiber, the high The nonlinear optical fiber is connected, and the first cladding power stripper is used to strip the first pumping light that is not fully absorbed in the first double-clad thulium-doped optical fiber.
可选的，所述“9”字形谐振腔还包括：光纤耦合器、光纤全反镜以及第一隔离器；Optionally, the "9" shaped resonator further includes: a fiber coupler, a fiber optic mirror and a first isolator;
所述光纤耦合器包含4个端口，所述4个端口分别用于与所述第一合束器、所述偏振控制器、所述第一隔离器的输入端、光纤全反镜相连接；The fiber coupler includes 4 ports, and the 4 ports are respectively used to be connected to the first beam combiner, the polarization controller, the input end of the first isolator, and the fiber mirror;
所述光纤全反镜用于将经过所述光纤耦合器传输至所述光纤全反镜的信号光反射回所述“9”字形谐振腔中。The fiber optic total reflection mirror is used to reflect the signal light transmitted to the fiber optic total reflection mirror through the fiber coupler back into the "9" shaped resonant cavity.
可选的，所述第一隔离器的输出端与所述双包层掺铥光纤预放大器相连接，所述第一隔离器用于使所述“9”字形谐振腔的输出信号光单向传输至所述双包层掺铥光纤预放大器。Optionally, the output end of the first isolator is connected to the double-clad thulium-doped fiber pre-amplifier, and the first isolator is used for unidirectional transmission of the output signal light of the "9" shaped resonator to the double-clad thulium-doped fiber preamplifier.
在本实施例中，所述双包层掺铥光纤预放大器包括：第二泵浦源、第二合束器、第二双包层掺铥光纤；In this embodiment, the double-clad thulium-doped fiber pre-amplifier includes: a second pump source, a second beam combiner, and a second double-clad thulium-doped fiber;
所述第二泵浦源与所述第二合束器相连接，所述第二泵浦源用于输出预设的第二泵浦光；The second pumping source is connected to the second beam combiner, and the second pumping source is used to output preset second pumping light;
所述第二合束器与所述第二双包层掺铥光纤相连接，所述第二合束器用于将所述第二泵浦光耦合进所述第二双包层掺铥光纤，并将所述耗散孤子共振矩形脉冲耦合进所述第二双包层掺铥光纤；The second beam combiner is connected to the second double-clad thulium-doped optical fiber, and the second beam combiner is used to couple the second pump light into the second double-clad thulium-doped optical fiber, and coupling the dissipative soliton resonant rectangular pulse into the second double-clad thulium-doped fiber;
所述第二双包层掺铥光纤用于为所述双包层掺铥光纤预放大器提供增益，并对所述耗散孤子共振矩形脉冲进行预放大处理。The second double-clad thulium-doped fiber is used to provide gain for the double-clad thulium-doped fiber pre-amplifier, and perform pre-amplification processing on the dissipated soliton resonance rectangular pulse.
可选的，所述双包层掺铥光纤预放大器还包括第二隔离器，所述第二隔离器的输入端与所述第二包层功率剥除器相连接，所述第二隔离器的输出端与所述双包层掺铥光纤主功率放大器相连接，所述第二隔离器用于使所述双包层掺铥光纤预放大器的输出信号光单向传输至所述双包层掺铥光纤主功率放大器。Optionally, the double-clad thulium-doped fiber pre-amplifier also includes a second isolator, the input end of the second isolator is connected to the second cladding power stripper, and the second isolator The output end of the double-clad thulium-doped fiber main power amplifier is connected, and the second isolator is used to unidirectionally transmit the output signal light of the double-clad thulium-doped fiber pre-amplifier to the double-clad doped fiber Thulium fiber optic main power amplifier.
在本实施例中，所述双包层掺铥光纤主功率放大器包括：模场适配器、第三泵浦源、第三合束器、第三双包层掺铥光纤；In this embodiment, the double-clad thulium-doped fiber main power amplifier includes: a mode field adapter, a third pump source, a third beam combiner, and a third double-clad thulium-doped fiber;
所述模场适配器用于不同模场面积光纤之间进行模场匹配，以降低由光纤模场不匹配造成的连接损耗；The mode field adapter is used for mode field matching between fibers with different mode field areas, so as to reduce connection loss caused by fiber mode field mismatch;
所述第三泵浦源与所述第三合束器相连接，所述第三泵浦源用于向所述第三合束器输入第三泵浦光；The third pumping source is connected to the third beam combiner, and the third pumping source is used to input third pumping light to the third beam combiner;
所述第三合束器与所述第三双包层掺铥光纤相连接，所述第三合束器用于将所述第三泵浦光耦合进所述第三双包层掺铥光纤，并将所述耗散孤子共振矩形脉冲耦合进所述第三双包层掺铥光纤；The third beam combiner is connected to the third double-clad thulium-doped optical fiber, and the third beam combiner is used to couple the third pump light into the third double-clad thulium-doped optical fiber, and coupling the dissipative soliton resonance rectangular pulse into the third double-clad thulium-doped fiber;
所述第三双包层掺铥光纤用于为所述双包层掺铥光纤主功率放大器提供增益，并对所述耗散孤子共振矩形脉冲提供能量和放大功率，以得到高能量的耗散孤子共振矩形脉冲。The third double-clad thulium-doped fiber is used to provide gain for the main power amplifier of the double-clad thulium-doped fiber, and to provide energy and amplification power to the dissipative soliton resonance rectangular pulse to obtain high-energy dissipation Soliton resonant rectangular pulse.
可选的，所述双包层掺铥光纤主功率放大器还包括第三包层功率剥除器，所述第三包层功率剥除器与所述第三双包层掺铥光纤相连接，用于剥除所述第三双包层掺铥光纤中未被充分吸收的第三泵浦光。Optionally, the main power amplifier of the double-clad thulium-doped fiber also includes a third cladding power stripper connected to the third double-clad thulium-doped fiber, Used to strip the third pumping light that is not fully absorbed in the third double-clad thulium-doped optical fiber.
在本实施例中，所述产生系统还包括光纤端帽，所述光纤端帽用于输出所述系统产生的高能量的耗散孤子共振矩形脉冲，降低由光纤端面引起的菲涅耳反射。In this embodiment, the generating system further includes an optical fiber end cap, and the optical fiber end cap is used to output the high-energy dissipative soliton resonance rectangular pulse generated by the system, so as to reduce Fresnel reflection caused by the end face of the optical fiber.
本实用新型提供的一种高能量耗散孤子共振矩形脉冲的产生系统，可通过谐振腔获得耗散孤子共振矩形脉冲，再利用光纤放大器对耗散孤子共振矩形脉冲进行功率放大，提高了耗散孤子共振矩形脉冲的能量，获得高能量的耗散孤子共振矩形脉冲，实现脉冲宽度可调的高能量矩形激光脉冲输出。The utility model provides a high-energy dissipative soliton resonance rectangular pulse generation system, which can obtain the dissipative soliton resonance rectangular pulse through the resonator, and then use the optical fiber amplifier to amplify the power of the dissipative soliton resonance rectangular pulse, which improves the dissipation The energy of the soliton resonance rectangular pulse is obtained, and the high-energy dissipative soliton resonance rectangular pulse is obtained, and the high-energy rectangular laser pulse output with adjustable pulse width is realized.
附图说明Description of drawings
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.
图1为本申请实施例的高能量耗散孤子共振矩形脉冲的产生系统架构图；FIG. 1 is a system architecture diagram for generating a high energy dissipation soliton resonance rectangular pulse according to an embodiment of the present application;
图2为本申请实施例的基于非线性放大环形镜锁模技术的“9”字形谐振腔结构图；FIG. 2 is a structural diagram of a "9" shaped resonator based on the nonlinear magnifying ring mirror mode-locking technology according to the embodiment of the present application;
图3为本申请实施例的“9”字形谐振腔内的光传播方向示意图；Fig. 3 is a schematic diagram of the light propagation direction in the "9"-shaped resonant cavity of the embodiment of the present application;
图4为本申请实施例的双包层掺铥光纤预放大器的结构图；Fig. 4 is the structural diagram of the double-clad thulium-doped fiber pre-amplifier of the embodiment of the present application;
图5为本申请实施例的双包层掺铥光纤主功率放大器的结构图；Fig. 5 is the structural diagram of the double-clad thulium-doped fiber main power amplifier of the embodiment of the present application;
图6为申请实施例的高能量耗散孤子共振矩形脉冲的产生系统的整体结构图。FIG. 6 is an overall structural diagram of a system for generating a high energy dissipation soliton resonance rectangular pulse according to an embodiment of the application.
具体实施方式Detailed ways
为使得本实用新型的实用新型目的、特征、优点能够更加的明显和易懂，下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而非全部实施例。基于本实用新型中的实施例，本领域技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the utility model embodiment will be clearly and completely described below in conjunction with the accompanying drawings in the utility model embodiment, Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.
在现有技术中，谐振腔所产生的耗散孤子共振脉冲的最大能量为μJ量级，为了进一步获得更高能量的耗散孤子共振脉冲，本实用新型提出一种高能量耗散孤子共振矩形脉冲的产生系统；请参阅图1，图1为本申请实施例的高能量耗散孤子共振矩形脉冲的产生系统架构图；该系统包括：基于非线性放大环形镜锁模技术的“9”字形谐振腔100、双包层掺铥光纤预放大器200及双包层掺铥光纤主功率放大器300；In the prior art, the maximum energy of the dissipative soliton resonance pulse generated by the resonator is on the order of μJ. In order to further obtain a higher energy dissipative soliton resonance pulse, the utility model proposes a high-energy dissipative soliton resonance rectangular Pulse generation system; please refer to Fig. 1, Fig. 1 is the structure diagram of the generation system of the high energy dissipation soliton resonance rectangular pulse of the embodiment of the present application; Resonant cavity 100, double-clad thulium-doped fiber pre-amplifier 200 and double-clad thulium-doped fiber main power amplifier 300;
“9”字形谐振腔100与双包层掺铥光纤预放大器200相连接，双包层掺铥光纤预放大器200与双包层掺铥光纤主功率放大器300相连接；The "9" shaped resonator 100 is connected to the double-clad thulium-doped fiber pre-amplifier 200, and the double-clad thulium-doped fiber pre-amplifier 200 is connected to the double-clad thulium-doped fiber main power amplifier 300;
“9”字形谐振腔100用于产生耗散孤子共振矩形脉冲，耗散孤子共振矩形脉冲经过双包层掺铥光纤预放大器200进行预放大处理，并传输至双包层掺铥光纤主功率放大器300，进行功率放大，以获得高能量耗散孤子共振矩形脉冲。The "9"-shaped resonant cavity 100 is used to generate the dissipative soliton resonance rectangular pulse, which is pre-amplified by the double-clad thulium-doped fiber pre-amplifier 200 and transmitted to the double-clad thulium-doped fiber main power amplifier 300, perform power amplification to obtain high energy dissipation soliton resonant rectangular pulses.
请参阅图2，图2为本申请实施例的基于非线性放大环形镜锁模技术的“9”字形谐振腔结构图；上述“9”字形谐振腔100包括：第一泵浦源101，第一泵浦源101为多模光纤耦合半导体激光器，其中心波长为793纳米，用于泵浦第一双包层掺铥光纤103；第一合束器102，第一合束器102用于将第一泵浦光耦合进第一双包层掺铥光纤103；第一双包层掺铥光纤103，第一双包层掺铥光纤103为小模场面积的双包层掺铥光纤，用于为“9”字形谐振腔100提供增益；第一包层功率剥除器104，第一包层功率剥除器104用于剥除第一双包层掺铥光纤103中未被充分吸收的多模泵浦光；高非线性光纤105和单模光纤106，高非线性光纤105和单模光纤106皆用于提高“9”字形谐振腔内的非线性；偏振控制器107，偏振控制器107用于调整“9”字形谐振腔100内的偏振态；光纤耦合器108，光纤耦合器108的输出耦合比为50：50，包含4个端口，可用于连接上述多个元器件；光纤全反镜109，光纤全反镜109用于将光纤耦合器输出的光反射回非线性放大环形镜中；第一隔离器110，第一隔离器110用于使信号光单向传输，防止后续光纤放大器返回光对“9”字形谐振腔100造成损伤；在本实施例中，通过上述器件的相连接构成“9”字形谐振腔100，特别的，第一泵浦源101、第一合束器102、第一双包层掺铥光纤103、包层功率剥除器104、高非线性光纤105、单模光纤106及偏振控制器107构成的部分传输光路与光纤耦合器108相连接构成一个环形传输的光路，进一步的，光纤全反镜109将经过光纤耦合器108输出的信号光反射回“9”字形谐振腔中，最终形成耗散孤子共振矩形脉冲。Please refer to FIG. 2. FIG. 2 is a structural diagram of a "9"-shaped resonant cavity based on a nonlinear magnifying ring mirror mode-locking technology according to an embodiment of the present application; the above-mentioned "9"-shaped resonant cavity 100 includes: a first pump source 101, a A pumping source 101 is a multimode fiber-coupled semiconductor laser, and its center wavelength is 793 nanometers, which is used to pump the first double-clad thulium-doped optical fiber 103; the first beam combiner 102, the first beam combiner 102 is used to combine The first pumping light is coupled into the first double-clad thulium-doped fiber 103; the first double-clad thulium-doped fiber 103, the first double-clad thulium-doped fiber 103 is a double-clad thulium-doped fiber with a small mode field area, using To provide gain for the "9" shaped resonator 100; the first cladding power stripper 104, the first cladding power stripper 104 is used to strip the not fully absorbed in the first double-clad thulium-doped optical fiber 103 Multi-mode pumping light; high nonlinear fiber 105 and single-mode fiber 106, high nonlinear fiber 105 and single-mode fiber 106 are used to improve the nonlinearity in the "9" shaped resonator; polarization controller 107, polarization controller 107 is used to adjust the polarization state in the "9" shaped resonant cavity 100; the fiber coupler 108, the output coupling ratio of the fiber coupler 108 is 50:50, including 4 ports, which can be used to connect the above-mentioned multiple components; Reflective mirror 109, fiber optic total reflection mirror 109 is used to reflect the light output by the fiber coupler back into the nonlinear magnifying ring mirror; the first isolator 110, the first isolator 110 is used to make the signal light one-way transmission, prevent subsequent optical fiber The return light from the amplifier causes damage to the "9"-shaped resonant cavity 100; in this embodiment, the "9"-shaped resonant cavity 100 is formed by the phase connection of the above-mentioned devices. In particular, the first pump source 101, the first beam combiner 102, the first double-clad thulium-doped optical fiber 103, the cladding power stripper 104, the high nonlinear optical fiber 105, the single-mode optical fiber 106 and the partial transmission optical path formed by the polarization controller 107 are connected with the fiber coupler 108 to form a ring In the transmission optical path, further, the optical fiber total reflection mirror 109 reflects the signal light output by the optical fiber coupler 108 back into the "9"-shaped resonant cavity, and finally forms a dissipative soliton resonance rectangular pulse.
进一步的，“9”字形谐振腔100内为非线性放大环形镜，可用于锁模。Further, the "9"-shaped resonant cavity 100 is a nonlinear amplifying ring mirror, which can be used for mode locking.
在本实施中，“9”字形谐振腔100包括：第一泵浦源101、第一合束器102、第一双包层掺铥光纤103、高非线性光纤105、单模光纤106及偏振控制器107；In this implementation, the "9" shaped resonator 100 includes: a first pump source 101, a first beam combiner 102, a first double-clad thulium-doped fiber 103, a highly nonlinear fiber 105, a single-mode fiber 106 and a polarization controller 107;
第一泵浦源101与第一合束器102相连接，第一泵浦源101用于输出预设的第一泵浦光；The first pumping source 101 is connected to the first beam combiner 102, and the first pumping source 101 is used to output a preset first pumping light;
第一合束器102与第一双包层掺铥光纤103相连接，第一合束器102用于将第一泵浦光耦合进第一双包层掺铥光纤103；在本实施例中，第一合束器102还用将“9”字形谐振腔中产生的部分信号光在进行环形传输时，耦合进所述第二双包层掺铥光纤；The first beam combiner 102 is connected with the first double-clad thulium-doped optical fiber 103, and the first beam combiner 102 is used to couple the first pump light into the first double-clad thulium-doped optical fiber 103; in this embodiment , the first beam combiner 102 is also used to couple part of the signal light generated in the "9" shaped resonator into the second double-clad thulium-doped optical fiber during circular transmission;
第一双包层掺铥光纤103用于为所述“9”字形谐振腔提供增益；The first double-clad thulium-doped fiber 103 is used to provide gain for the "9" shaped resonator;
高非线性光纤105与单模光纤106相连接，高非线性光纤105与单模光纤106皆用于提高所述“9”字形谐振腔100的非线性。引入长的高非线性光纤105与单模光纤106不仅可以提高谐振腔的非线性效应，还可以降低谐振腔输出激光的重复频率，有利于获得大能量脉冲。The high nonlinear fiber 105 is connected with the single-mode fiber 106 , and both the high nonlinear fiber 105 and the single-mode fiber 106 are used to improve the nonlinearity of the “9” shaped resonator 100 . The introduction of long highly nonlinear optical fiber 105 and single-mode optical fiber 106 can not only improve the nonlinear effect of the resonator, but also reduce the repetition frequency of the laser output from the resonator, which is beneficial to obtain large energy pulses.
偏振控制器107与单模光纤106相连接，偏振控制器107用于调整“9”字形谐振腔100内的偏振态；在本实施例中，偏振控制器107为三桨旋转式的偏振控制器或挤压式偏振控制器，可通过三桨旋转式的偏振控制器或挤压式偏振控制器调整“9”字形谐振腔内的偏振态；The polarization controller 107 is connected to the single-mode optical fiber 106, and the polarization controller 107 is used to adjust the polarization state in the "9" shaped resonator 100; in this embodiment, the polarization controller 107 is a three-paddle rotary polarization controller Or squeeze-type polarization controller, which can adjust the polarization state in the "9"-shaped resonant cavity through the three-paddle rotating polarization controller or squeeze-type polarization controller;
进一步的，“9”字形谐振腔100还包括包第一层功率剥除器104，第一包层功率剥除器104分别与第一双包层掺铥光纤103、高非线性光纤105相连接，第一包层功率剥除器104用于剥除第一双包层掺铥光纤103中未被充分吸收的第一泵浦光，在本实施例中，第一泵浦光为多模泵浦光。Further, the "9" shaped resonator 100 also includes a first cladding power stripper 104, and the first cladding power stripper 104 is respectively connected to the first double-clad thulium-doped optical fiber 103 and the high nonlinear optical fiber 105 , the first cladding power stripper 104 is used to strip the first pump light that is not fully absorbed in the first double-clad thulium-doped fiber 103. In this embodiment, the first pump light is a multimode pump Pu Guang.
进一步的，“9”字形谐振腔100还包括：光纤耦合器108、光纤全反镜109以及第一隔离器110；Further, the "9" shaped resonator 100 also includes: a fiber coupler 108, a fiber optic mirror 109 and a first isolator 110;
光纤耦合器108包含4个端口，4个端口分别用于与第一合束器102、偏振控制器107、第一隔离器110的输入端、光纤全反镜109相连接，在本实施例中，采用光纤耦合器50:50，其所述包含的4个端口可分别作为输入或输出端口，例如，端口1和2为同一端、3和4为同一端，此时1和2端口其中一个作为输入端时，3和4端口都有信号光输出；而3和4端口其中一个作为输入端时，1和2端口都有信号光输出；The fiber coupler 108 includes 4 ports, and the 4 ports are respectively used to be connected to the input end of the first beam combiner 102, the polarization controller 107, the first isolator 110, and the optical fiber total reflection mirror 109. In this embodiment , using a fiber optic coupler 50:50, the 4 ports included in it can be used as input or output ports respectively, for example, ports 1 and 2 are the same end, 3 and 4 are the same end, at this time one of the 1 and 2 ports When used as an input port, both ports 3 and 4 have signal light output; when one of ports 3 and 4 is used as an input port, both ports 1 and 2 have signal light output;
光纤全反镜109用于将经过光纤耦合器109传输至光纤全反镜109的信号光反射回“9”字形谐振腔100中。The fiber optic total reflection mirror 109 is used to reflect the signal light transmitted to the fiber optic total reflection mirror 109 through the fiber optic coupler 109 back into the “9” shaped resonant cavity 100 .
进一步的，第一隔离器110的输出端与双包层掺铥光纤预放大器200相连接，第一隔离器110用于使“9”字形谐振腔100的输出信号光单向传输至双包层掺铥光纤预放大器200，防止后续双包层掺铥光纤预放大器200的返回光对“9”字形谐振腔100造成损伤。Further, the output end of the first isolator 110 is connected to the double-clad thulium-doped fiber pre-amplifier 200, and the first isolator 110 is used to unidirectionally transmit the output signal light of the "9"-shaped resonator 100 to the double-clad The thulium-doped fiber pre-amplifier 200 prevents the return light of the subsequent double-clad thulium-doped fiber pre-amplifier 200 from causing damage to the "9"-shaped resonant cavity 100 .
请参考图3，图3为本申请实施例的“9”字形谐振腔内的光传播方向示意图；在本实施例中，第一泵浦源101提供预设的第一泵浦光，并传输至第一合束器102；第一合束器102将第一泵浦光泵浦到第一双包层掺铥光纤103；第一双包层掺铥光纤103为“9”字形谐振腔提供增益；第一包层功率剥除器104剥除第一双包层掺铥光纤103中未被充分吸收的第一泵浦光，高非线性光纤105和单模光纤106用于提高“9”字形谐振腔的非线性；偏振控制器107用于提高“9”字形谐振腔内的偏振态；从光纤耦合器108输出的信号光可传输至光纤全反镜109进行反射回“9”字形谐振腔100中。最终，“9”字形谐振腔内产生的耗散孤子共振矩形脉冲经第一隔离器110输出。Please refer to FIG. 3, which is a schematic diagram of the light propagation direction in the "9"-shaped resonant cavity of the embodiment of the present application; in this embodiment, the first pumping source 101 provides the preset first pumping light, and transmits To the first beam combiner 102; the first beam combiner 102 pumps the first pump light to the first double-clad thulium-doped fiber 103; the first double-clad thulium-doped fiber 103 provides a "9" shaped resonator Gain; the first cladding power stripper 104 strips the first pump light that is not fully absorbed in the first double-clad thulium-doped fiber 103, and the high nonlinear fiber 105 and the single-mode fiber 106 are used to improve "9" The nonlinearity of the zigzag resonator; the polarization controller 107 is used to improve the polarization state in the "9" resonator; the signal light output from the fiber coupler 108 can be transmitted to the fiber mirror 109 for reflection back to the "9" resonator cavity 100. Finally, the dissipative soliton resonance rectangular pulse generated in the "9" shaped resonant cavity is output through the first isolator 110 .
在本申请实施例中，上述第一泵浦源为多模光纤耦合半导体激光器。In the embodiment of the present application, the above-mentioned first pumping source is a multimode fiber-coupled semiconductor laser.
请参阅图4，图4为本申请实施例的双包层掺铥光纤预放大器的结构图；双包层掺铥光纤预放大器200包括：第二泵浦源201，第二泵浦源201是多模光纤耦合半导体激光器，中心波长为793nm，用于泵浦第二双包层掺铥光纤；第二合束器202，第二合束器202用于将第二泵浦光耦合进第二双包层掺铥光纤203；第二双包层掺铥光纤203，第二双包层掺铥光纤203是小模场面积的双包层掺铥光纤，用于为双包层掺铥光纤预放大器200提供增益；第二包层功率剥除器204，用于剥除双包层掺铥光纤预放大器200中第二双包层掺铥光纤203未被充分吸收的多模泵浦光。第二隔离器205，用于使信号光单向传输，防止后续双包层掺铥光纤主功率放大器300返回光对双包层掺铥光纤预放大器200造成损伤。Please refer to Fig. 4, Fig. 4 is the structural diagram of the double-clad thulium-doped fiber pre-amplifier of the embodiment of the present application; A multimode fiber-coupled semiconductor laser with a central wavelength of 793nm is used to pump the second double-clad thulium-doped fiber; the second beam combiner 202, and the second beam combiner 202 is used to couple the second pumping light into the second Double-clad thulium-doped optical fiber 203; the second double-clad thulium-doped optical fiber 203, the second double-clad thulium-doped optical fiber 203 is a double-clad thulium-doped optical fiber with a small mode field area, and is used for pre-processing the double-clad thulium-doped optical fiber The amplifier 200 provides gain; the second cladding power stripper 204 is used for stripping the multimode pump light not fully absorbed by the second double clad thulium-doped fiber 203 in the double-clad thulium-doped fiber pre-amplifier 200 . The second isolator 205 is used for unidirectional transmission of signal light, and prevents damage to the double-clad thulium-doped fiber pre-amplifier 200 caused by the return light of the subsequent double-clad thulium-doped fiber main power amplifier 300 .
在本实施例中，双包层掺铥光纤预放大器200包括：第二泵浦源201、第二合束器202、第二双包层掺铥光纤203；In this embodiment, the double-clad thulium-doped fiber preamplifier 200 includes: a second pump source 201, a second beam combiner 202, and a second double-clad thulium-doped fiber 203;
第二泵浦源201与第二合束器202相连接，第二泵浦源201用于输出预设的第二泵浦光；The second pumping source 201 is connected to the second beam combiner 202, and the second pumping source 201 is used to output the preset second pumping light;
第二合束器202与第二双包层掺铥光纤203相连接，第二合束器202用于将第二泵浦光耦合进第二双包层掺铥光纤203，并将所述耗散孤子共振矩形脉冲耦合进所述第二双包层掺铥光纤；The second beam combiner 202 is connected with the second double-clad thulium-doped optical fiber 203, the second beam combiner 202 is used to couple the second pump light into the second double-clad thulium-doped optical fiber 203, and the loss Scattering soliton resonance rectangular pulses are coupled into the second double-clad thulium-doped optical fiber;
第二双包层掺铥光纤203用于为双包层掺铥光纤预放大器提供增益，并对耗散孤子共振矩形脉冲进行预放大处理。The second double-clad thulium-doped fiber 203 is used to provide gain for the pre-amplifier of the double-clad thulium-doped fiber, and to pre-amplify the dissipated soliton resonance rectangular pulse.
进一步的，双包层掺铥光纤预放大器200还包括第二隔离器205，第二隔离器205的输出端与双包层掺铥光纤主功率放大器300相连接，第二隔离器205使双包层掺铥光纤预放大器200输出的信号光单向传输至双包层掺铥光纤主功率放大器300，防止后续双包层掺铥光纤主功率放大器300返回光对双包层掺铥光纤预放大器200造成损伤。Further, the double-clad thulium-doped fiber pre-amplifier 200 also includes a second isolator 205, the output end of the second isolator 205 is connected with the double-clad thulium-doped fiber main power amplifier 300, and the second isolator 205 makes the double-clad The signal light output by the layer thulium-doped fiber pre-amplifier 200 is unidirectionally transmitted to the double-clad thulium-doped fiber main power amplifier 300, preventing the subsequent double-clad thulium-doped fiber main power amplifier 300 from returning light to the double-clad thulium-doped fiber pre-amplifier 200 cause damage.
进一步的，双层掺铥光纤预放大器200还包括第二包层功率剥除器204，第二包层功率剥除器204位于第二双包层掺铥光纤203与第二隔离器205之间，分别与第二双包层掺铥光纤203、第二隔离器205的输入端相连接，第二包层功率剥除器204用于剥除第二双包层掺铥光纤203中未被充分吸收的第二泵浦光，在本实施例中，所述第二泵浦光为多模泵浦光。Further, the double-layer thulium-doped fiber preamplifier 200 also includes a second cladding power stripper 204, and the second cladding power stripper 204 is located between the second double-clad thulium-doped optical fiber 203 and the second isolator 205 , are respectively connected with the input ends of the second double-clad thulium-doped fiber 203 and the second isolator 205, and the second cladding power stripper 204 is used to strip the insufficient power in the second double-clad thulium-doped fiber 203. The absorbed second pumping light, in this embodiment, the second pumping light is multi-mode pumping light.
在本实施例中，第二泵浦源201提供预设的第二泵浦光，并传输至第二合束器202；第二合束器202将第二泵浦光耦合到第二双包层掺铥光纤203；第二双包层掺铥光纤203为双包层掺铥光纤预放大器提供增益；同时，第二合束器202的信号纤与第一隔离器110的输出端相连接，第二合束器202的输入端接收“9”字形谐振腔所输出的耗散孤子共振矩形脉冲，并将其耦合到第二双包层掺铥光纤203，使得耗散孤子共振矩形脉冲得到预放大处理；第二包层功率剥除器204用于剥除第二双包层掺铥光纤203中未被充分吸收的第二泵浦光；经过双包层掺铥光纤预放大器的预放大处理后的耗散孤子共振矩形脉冲经第二隔离器205输出。In this embodiment, the second pumping source 201 provides the preset second pumping light and transmits it to the second beam combiner 202; the second beam combiner 202 couples the second pumping light to the second double pack Layer thulium-doped fiber 203; the second double-clad thulium-doped fiber 203 provides gain for the double-clad thulium-doped fiber pre-amplifier; meanwhile, the signal fiber of the second beam combiner 202 is connected with the output end of the first isolator 110, The input end of the second beam combiner 202 receives the dissipative soliton resonance rectangular pulse output by the "9" shaped resonator, and couples it to the second double-clad thulium-doped optical fiber 203, so that the dissipative soliton resonance rectangular pulse is pre-determined Amplification processing; the second cladding power stripper 204 is used to strip the second pump light that is not fully absorbed in the second double-clad thulium-doped fiber 203; pre-amplification processing through the double-clad thulium-doped fiber pre-amplifier The subsequent dissipative soliton resonance rectangular pulse is output through the second isolator 205 .
在本申请实施例中，上述第二泵浦源为多模光纤耦合半导体激光器，第二泵浦源的数量大于第一泵浦源。In the embodiment of the present application, the above-mentioned second pumping source is a multimode fiber-coupled semiconductor laser, and the number of the second pumping source is greater than that of the first pumping source.
请参阅图5，图5为本申请实施例的双包层掺铥光纤主功率放大器的结构图；双包层掺铥光纤主功率放大器300包括：模场适配器305，模场适配器305用于不同模场面积光纤之间的模场匹配，降低由光纤模场不匹配造成的连接损耗；第三泵浦源301，第三泵浦源301为高功率多模光纤耦合半导体激光器，中心波长为793nm，用于泵浦第三双包层掺铥光纤303；第三合束器302，高功率合束器302用于将第三泵浦光耦合进高功率双包层掺铥光纤303；第三双包层掺铥光纤303是大模场面积的双包层掺铥光纤，用于为双包层掺铥光纤主功率放大器300提供增益；第三包层功率剥除器304，用于剥除双包层掺铥光纤主功率放大器300中第三双包层掺铥光纤303未被充分吸收的多模泵浦光。Please refer to Fig. 5, Fig. 5 is the structural diagram of the double-clad thulium-doped fiber main power amplifier of the embodiment of the present application; The mode field matching between the mode field area fibers reduces the connection loss caused by the fiber mode field mismatch; the third pumping source 301, the third pumping source 301 is a high-power multimode fiber-coupled semiconductor laser with a central wavelength of 793nm , for pumping the third double-clad thulium-doped optical fiber 303; the third beam combiner 302, the high-power beam combiner 302 is used to couple the third pumping light into the high-power double-clad thulium-doped optical fiber 303; the third The double-clad thulium-doped fiber 303 is a double-clad thulium-doped fiber with a large mode field area, which is used to provide gain for the double-clad thulium-doped fiber main power amplifier 300; the third cladding power stripper 304 is used to strip The multimode pump light that is not fully absorbed by the third double-clad thulium-doped fiber 303 in the double-clad thulium-doped fiber main power amplifier 300 .
在本实施例中，双包层掺铥光纤主功率放大器300包括：模场适配器305、第三泵浦源301、第三合束器302、第三双包层掺铥光纤303；In this embodiment, the double-clad thulium-doped fiber main power amplifier 300 includes: a mode field adapter 305, a third pump source 301, a third beam combiner 302, and a third double-clad thulium-doped fiber 303;
模场适配器305用于不同模场面积光纤之间进行模场匹配，以降低由光纤模场不匹配造成的连接损耗；The mode field adapter 305 is used for mode field matching between fibers with different mode field areas, so as to reduce connection loss caused by fiber mode field mismatch;
第三泵浦源301与第三合束器302相连接，第三泵浦源301用于向第三合束器302输入第三泵浦光；The third pumping source 301 is connected to the third beam combiner 302, and the third pumping source 301 is used to input the third pumping light to the third beam combiner 302;
第三合束器302与第三双包层掺铥光纤303相连接，第三合束器302用于将第三泵浦光耦合进第三双包层掺铥光纤303，并将预放大后的耗散孤子共振矩形脉冲传送至第三双包层掺铥光纤303；The third beam combiner 302 is connected with the third double-clad thulium-doped optical fiber 303, the third beam combiner 302 is used to couple the third pump light into the third double-clad thulium-doped optical fiber 303, and the pre-amplified The dissipative soliton resonance rectangular pulse is transmitted to the third double-clad thulium-doped optical fiber 303;
第三双包层掺铥光纤303用于为双包层掺铥光纤主功率放大器300提供增益，并对耗散孤子共振矩形脉冲提供能量和放大功率，以得到高能量的耗散孤子共振矩形脉冲。The third double-clad thulium-doped fiber 303 is used to provide gain for the double-clad thulium-doped fiber main power amplifier 300, and to provide energy and amplification power to the dissipated soliton resonance rectangular pulse, so as to obtain a high-energy dissipative soliton resonance rectangular pulse .
进一步的，双包层掺铥光纤主功率放大器300还包括第三包层功率剥除器304，第三包层功率剥除器304与第三双包层掺铥光纤303相连接，用于剥除第三双包层掺铥光纤303中未被充分吸收的第三泵浦光，在本实施例中，第三泵浦光为多模泵浦光。Further, the double-clad thulium-doped fiber main power amplifier 300 also includes a third cladding power stripper 304, and the third cladding power stripper 304 is connected with the third double-clad thulium-doped optical fiber 303 for stripping Except for the third pumping light that is not fully absorbed in the third double-clad thulium-doped fiber 303 , in this embodiment, the third pumping light is multimode pumping light.
在本实施例中，第三泵浦源301提供预设的第三泵浦光，并传输至第三合束器302；第三合束器302将第三泵浦光泵浦到第三双包层掺铥光纤303；第三双包层掺铥光纤303为双包层掺铥光纤主功率放大器提供增益；同时，模场适配器305的输入端与第二隔离器205相连接，接收双包层掺铥光纤预放大器200的第二隔离器205输出的预放大处理后的耗散孤子共振矩形脉冲，并传输至第三合束器302；第三合束器302的信号纤接收预放大处理后的耗散孤子共振矩形脉冲，并将其耦合到第三双包层掺铥光纤303，使得耗散孤子共振矩形脉冲得到能量提高和功率放大；第三包层功率剥除器304用于剥除第三双包层掺铥光纤303中未被充分吸收的第三泵浦光。In this embodiment, the third pumping source 301 provides the preset third pumping light and transmits it to the third beam combiner 302; the third beam combiner 302 pumps the third pumping light to the third dual Cladding thulium-doped fiber 303; the third double-clad thulium-doped fiber 303 provides gain for the double-clad thulium-doped fiber main power amplifier; meanwhile, the input end of the mode field adapter 305 is connected with the second isolator 205 to receive the double-clad The pre-amplified dissipated soliton resonance rectangular pulse output by the second isolator 205 of the layer-doped thulium fiber pre-amplifier 200 is transmitted to the third beam combiner 302; the signal fiber of the third beam combiner 302 receives the pre-amplification process The last dissipated soliton resonance rectangular pulse is coupled to the third double-clad thulium-doped fiber 303, so that the energy of the dissipated soliton resonance rectangular pulse is improved and the power is amplified; the third cladding power stripper 304 is used for stripping removing the third pumping light that is not fully absorbed in the third double-clad thulium-doped fiber 303 .
在本申请实施例中，上述第三泵浦源为高功率多模光纤耦合半导体激光器。In the embodiment of the present application, the above-mentioned third pumping source is a high-power multimode fiber-coupled semiconductor laser.
在本申请的上述实施例中，第一双包层掺铥光纤、第二双包层掺铥光纤及第三双包层掺铥光纤吸收泵浦光后产生新的信号光，同时提供增益；进一步的，第一双包掺铥光纤在吸收泵浦光后产生的信号光为耗散孤子共矩形脉冲，此时的耗散孤子共矩形脉冲的能量不高，无法满足高能量耗散孤子共矩形脉冲领域产业的需求，因此需要通过放大器来提高耗散孤子共矩形脉冲的能量；未被第一双包层掺铥光纤、第二双包层掺铥光纤及第三双包层掺铥光纤吸收的多模泵浦光，将被包层功率剥除器剥除。In the above embodiments of the present application, the first double-clad thulium-doped fiber, the second double-clad thulium-doped fiber and the third double-clad thulium-doped fiber absorb the pump light and generate new signal light while providing gain; Furthermore, the signal light generated by the first double-encapsulated thulium-doped fiber after absorbing the pump light is a dissipative soliton co-rectangular pulse. The needs of the industry in the field of rectangular pulses, so it is necessary to increase the energy of dissipated soliton co-rectangular pulses through amplifiers; the first double-clad thulium-doped fiber, the second double-clad thulium-doped fiber and the third double-clad thulium-doped fiber The absorbed multimode pump light will be stripped by the cladding power stripper.
请参阅图6，图6为申请实施例的高能量耗散孤子共振矩形脉冲的产生系统的主体结构图；高能量耗散孤子共振矩形脉冲的产生系统包括：基于非线性放大环形镜锁模技术的“9”字形谐振腔100、双包层掺铥光纤预放大器200、双包层掺铥光纤主功率放大器300以及光纤端帽400，“9”字形谐振腔100与双包层掺铥光纤预放大器200相连接，双包层掺铥光纤预放大器200分别与“9”字形谐振腔100、双包层掺铥光纤主功率放大器300相连接，双包层掺铥光纤主功率放大器300与光纤端帽400相连接，在本实施例中，对光纤端帽400做8°角和镀膜处理，用于输出系统产生的高能量的耗散孤子共振矩形脉冲；进一步的，上述的双包层掺铥光纤预放大器200的数量可为一个或多个，具体可根据上述“9”字形谐振腔100所输出功率的大小可适当改变双包层掺铥光纤预放大器200的数量，本实施例对此不作进一步限定，其他通过增加或减少双包层掺铥光纤预放大器200的数量的实施例也属于本申请的保护范围。Please refer to Fig. 6, Fig. 6 is the main structural diagram of the generation system of the high energy dissipation soliton resonance rectangular pulse of the embodiment of the application; the generation system of the high energy dissipation soliton resonance rectangular pulse includes: based on nonlinear magnifying ring mirror mode-locking technology The "9" shaped resonator 100, the double-clad thulium-doped fiber preamplifier 200, the double-clad thulium-doped fiber main power amplifier 300 and the fiber end cap 400, the "9" shaped resonator 100 and the double-clad thulium-doped fiber pre-amplifier The amplifiers 200 are connected, the double-clad thulium-doped fiber pre-amplifier 200 is respectively connected with the "9" shaped resonator 100, the double-clad thulium-doped fiber main power amplifier 300, the double-clad thulium-doped fiber main power amplifier 300 is connected to the fiber end The caps 400 are connected. In the present embodiment, the fiber end cap 400 is treated with an angle of 8° and coated for the high-energy dissipative soliton resonance rectangular pulse generated by the output system; further, the above-mentioned double-clad doped thulium The number of fiber pre-amplifiers 200 can be one or more, and the number of double-clad thulium-doped fiber pre-amplifiers 200 can be appropriately changed according to the output power of the above-mentioned "9"-shaped resonator 100, which is not discussed in this embodiment. To further define, other embodiments that increase or decrease the number of double-clad thulium-doped fiber preamplifiers 200 also fall within the protection scope of the present application.
进一步的，在本实施例中，对光纤端帽400做8°角和镀膜处理，可有效地降低由光纤端面引起的菲涅耳反射，光纤端帽用于输出由系统产生的高能量耗散孤子共振矩形脉冲，高能量耗散孤子共振矩形脉冲的能量可达到百μJ量级甚至nJ量级。Further, in this embodiment, the fiber end cap 400 is treated with an angle of 8° and coated, which can effectively reduce the Fresnel reflection caused by the fiber end face, and the fiber end cap is used to output the high energy dissipation generated by the system Soliton resonance rectangular pulse, the energy of high energy dissipation soliton resonance rectangular pulse can reach the order of hundreds of μJ or even nJ.
进一步的，上述高能量耗散孤子共振矩形脉冲的产生系统中的“9”字形谐振腔100、双包层掺铥光纤预放大器200及双包层掺铥光纤主功率放大器300之间的连接关系为：“9”字形谐振腔100内的第一隔离器110与双包层掺铥光纤预放大器200内的第二合束器202的信号纤相连接，双包层掺铥光纤预放大器200内的第二隔离器205与双包层掺铥光纤主功率放大器300内的场模适配器305相连接；该连接关系组建成高能量耗散孤子共振矩形脉冲的产生系统。Further, the connection relationship between the "9"-shaped resonator 100, the double-clad thulium-doped fiber pre-amplifier 200 and the double-clad thulium-doped fiber main power amplifier 300 in the above-mentioned high-energy dissipation soliton resonance rectangular pulse generation system It is: the first isolator 110 in the "9" shaped resonator 100 is connected to the signal fiber of the second beam combiner 202 in the double-clad thulium-doped fiber pre-amplifier 200, and the double-clad thulium-doped fiber pre-amplifier 200 The second isolator 205 is connected to the field mode adapter 305 in the double-clad thulium-doped fiber main power amplifier 300; the connection relationship constitutes a high energy dissipation soliton resonance rectangular pulse generation system.
进一步的，高能量耗散孤子共振矩形脉冲的产生系统中所包含的各种元器件中，除了双包层掺铥光纤、高非线性光纤、单模光纤等功能光纤外，其他的元器件本体均附带尾纤，双包层掺铥光纤、高非线性光纤、单模光纤等功能光纤和各元器件的尾纤可通过相熔接，完成连接。Furthermore, among the various components contained in the high-energy dissipative soliton resonance rectangular pulse generation system, except for functional fibers such as double-clad thulium-doped fibers, highly nonlinear fibers, and single-mode fibers, other components Both are attached with pigtails, double-clad thulium-doped fibers, highly nonlinear fibers, single-mode fibers and other functional fibers and pigtails of various components can be spliced to complete the connection.
本实用新型提供的一种高能量耗散孤子共振矩形脉冲的产生系统，可通过基于非线性放大环形镜锁模技术的“9”字形谐振腔获得耗散孤子共振矩形脉冲，再利用双包层掺铥光纤预放大器、双包层掺铥光纤主功率放大器对耗散孤子共振矩形脉冲进行功率放大，提高了耗散孤子共振矩形脉冲的能量，获得高能量的耗散孤子共振矩形脉冲，实现脉冲宽度可调的高能量矩形激光脉冲输出。The utility model provides a high-energy dissipative soliton resonance rectangular pulse generation system, which can obtain the dissipative soliton resonance rectangular pulse through the "9"-shaped resonant cavity based on the nonlinear magnifying ring mirror mode-locking technology, and then use the double-clad The thulium-doped fiber pre-amplifier and the double-clad thulium-doped fiber main power amplifier amplify the power of the dissipative soliton resonance rectangular pulse, which improves the energy of the dissipative soliton resonance rectangular pulse, obtains a high-energy dissipative soliton resonance rectangular pulse, and realizes the pulse High energy rectangular laser pulse output with adjustable width.
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，可以通过其它的方式实现。例如，以上所描述的结构实施例仅仅是示意性的，例如，所述“光纤器件”的连接，仅仅为一种逻辑功能连接方式，实际在实现时可以有另外的连接方式，例如多个相同的器件或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，也可以其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed system may be implemented in other ways. For example, the structural embodiments described above are only illustrative. For example, the connection of the "optical fiber device" is only a logical function connection method, and there may be other connection methods in actual implementation, such as multiple identical A device or component may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces or other forms.
另外，在本实用新型各个实施例中的各功能“光纤器件”可以集成在一个系统中，也可以是分别组成一个部分的功能集成装置存在，也可以为两个或两个以上集成装置。上述集成装置既可以采用硬件的形式实现，也可以采用软件、硬件结合的功能集成装置的形式实现。In addition, each functional "optical fiber device" in each embodiment of the present utility model can be integrated into one system, or there can be a functional integration device that constitutes a part, or there can be two or more integrated devices. The above integrated device can be implemented in the form of hardware, or in the form of a functional integration device combining software and hardware.
需要说明的是，对于前述的各方法实施例，为了简便描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本实用新型并不受所描述的动作顺序的限制，因为依据本实用新型，某些步骤可以采用其它顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定都是本实用新型所必须的。It should be noted that, for the sake of simplicity of description, the aforementioned method embodiments are expressed as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence , because according to the present invention, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present utility model.
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其它实施例的相关描述。In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.
以上为对本实用新型所提供的一种高能量耗散孤子共振矩形脉冲的产生系统的描述，对于本领域的技术人员，依据本实用新型实施例的思想，在具体实施方式及应用范围上均会有改变之处，综上，本说明书内容不应理解为对本实用新型的限制。The above is a description of a high-energy dissipation soliton resonance rectangular pulse generation system provided by the utility model. For those skilled in the art, based on the idea of the utility model embodiment, both the specific implementation and the scope of application will be There are changes. In summary, the content of this specification should not be construed as limiting the utility model.
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20191213 |