Optical Isolators - Faraday Isolators

Compact designWavelength UV-visible-IRProven in laser system High isolation Low loss

Compact Single and Dual Stage Optical Isolators Powered by CrystaLaser. The optical isolators allow the transmission of light in only one direction. The operation of the optical isolators depend on the Faraday effect which is magneto-optic effect, so they are also called Faraday Isolators. Most of them are used with laser systems so they are also called laser isolators.

The optical isolators are specially designed to be compact in size and with high transmission and low loss for the laser wavelength. the single stage isolators provide >93 % transmission with >35 dB isolation and dual stage isolators provide 60 dB isolation and 85% transmission Compact optical Isolators for UV visible IR wavelength range from 193nm to 2000nm available from CrystaLaser. Compact optical isolator Faraday isolator

Compact optical isolator Faraday isolator

Current standard aperture size is 4 mmand 3 mm. Aperture size of 2 mm, 3 mm,4 mm, 5 mm, 6 mm, 10 mm and 12 mmis available.

Broadband optical isolators and tunable free-space optical isolators for Ti:Sapphire Lasers and other tunable or brodband spectrum beams are also available on request.

for shopping Optical isolators launched at

The Optical Isolators are suitable for following applications

Prevent laser and cavity optics from unwanted back reflection
Optical Diode, unidirectional light transmission
Prevent laser cavity optics from the damage of high power laser beam back reflection
Protection for a seed laser
Stabilize laser power by reduce the back reflection interferences, reduce amplitude noise
Stabilize laser output spectrum to prevent mode hopping or frequency shifts
Dual stage isolators provide double isolation

Compact violet blue laser optical isolator

Features:

Compact size easily fit in optical paths

Faraday isolator with high isolation

High transmission with low loss

High laser through out power and high laser damage resistant, please contact CrystaLaser for detail
Isolators with high power handling option provide input and output rejecting beam exits. Rejecting beam Exits (E) should be selected if forward laser >2 W or rejected laser power >0.5W or 0.1J/cm² at 10ns. The I-1064-05HE isolator can handle power 100W, 25kW/cm², 10J/cm² at 1064nm 10ns
Dual-stage otical isolators provide double isolation up to 60dB
Compact Broadband and Wide Band Optical Isolators is available from 390nm to 1200nm. The isolation spectrum bandwidth is expanded 5X to 10X wider than that for standard optical isolators
Compact Faraday Rotator provides customer required rotation angle with high transmission of 98% to 99.8%

If you have optical isolator requirements, pleasecontact CrystaLaser directly.
Please download the Specifications of the Optical Isolators that operate in spectral wavelength ranges from 193nm to 2000nm.

Faraday Optical Isolators

Optical Isolator Descriptions and Specifications
Optical isolators or Faraday rotators, with aperture size of 3 mm, 4 mm, 5 mm, 6 mm, 10 mm and 12 mm for every wavelength from 193nm to 1980 nm are all availble.

______________________________________________________________________________________ Isolator     Center Wavelength      Adjustable       Aperture   Isolation    Outside     Model #      Transmission Tc      Range(T>97%Tc)      Size                  Diameter_______________________________________________________________________________________Aperture size 4 mm  I-266-04       266 nm  T>85%        248-270 nm         4 mm       >28dB       25 mm I-355-04       355 nm  T>91%        345-365 nm         4 mm       >33dB       21 mm I-375-04       375 nm  T>91%        365-390 nm         4 mm       >33dB       21 mm I-405-04       405 nm  T>90%        390-415 nm         4 mm       >33dB       18 mm I-420-04       420 nm  T>90%        410-430 nm         4 mm       >33dB       18 mm I-440-04       440 nm  T>90%        430-455 nm         4 mm       >33dB       18 mm I-457-04       457 nm  T>91%        448-465 nm         4 mm       >33dB       18 mm I-473-04       473 nm  T>93%        460-480 nm         4 mm       >35dB       18 mm I-488-04       488 nm  T>93%        480-498 nm         4 mm       >32dB       21 mm I-500-04       500 nm  T>90%        496-515 nm         4 mm       >32dB       18 mm I-515-04       515 nm  T>91%        505-525 nm         4 mm       >35dB       18 mm I-532-04       532 nm  T>91%        520-555 nm         4 mm       >35dB       18 mm I-561-04       561 nm  T>91%        545-580 nm         4 mm       >35dB       18 mm I-593-04       593 nm  T>93%        580-615 nm         4 mm       >35dB       18 mm I-633-04       633 nm  T>93%        610-650 nm         4 mm       >35dB       18 mm I-660-04       660 nm  T>93%        645-675 nm         4 mm       >35dB       21 mm I-685-04       685 nm  T>90%        670-700 nm         4 mm       >35dB       21 mm I-725-04       725 nm  T>90%        700-750 nm         4 mm       >35dB       21 mm I-785-04       785 nm  T>93%        750-810 nm         4 mm       >35dB       21 mm I-808-04       808 nm  T>93%        795-820 nm         4 mm       >35dB       21 mm I-830-04       830 nm  T>93%        800-860 nm         4 mm       >35dB       21 mm I-860-04       860 nm  T>91%        830-900 nm         4 mm       >35dB       21 mm I-910-04       910 nm  T>91%        890-930 nm         4 mm       >35dB       21 mm I-946-04       946 nm  T>91%        910-980 nm         4 mm       >35dB       21 mm I-980-04       980 nm  T>91%        950-1010 nm        4 mm       >35dB       21 mm I-1030-04     1030 nm  T>91%       1000-1064 nm        4 mm       >35dB       21 mm I-1064-04     1064 nm  T>93%       1030-1100 nm        4 mm       >35dB       21 mm I-1080-04     1080 nm  T>91%       1050-1120 nm        4 mm       >35dB       21 mm I-1122-04     1122 nm  T>90%       1100-1180 nm        4 mm       >35dB       21 mm I-1250-04     1250 nm  T>90%       1200-1300 nm        4 mm       >35dB       21 mm I-1320-04     1320 nm  T>94%       1300-1380 nm        4 mm       >35dB       10 mm I-1550-04     1550 nm  T>94%       1500-1600 nm        4 mm       >35dB       10 mm  Dual stage optical isolators I-D405-04      405 nm  T>82%        395-410 nm         4 mm       >60dB       18 mm I-D440-04      440 nm  T>82%        420-455 nm         4 mm       >60dB       18 mm I-D473-04      473 nm  T>86%        460-479 nm         4 mm       >60dB       18 mm I-D532-04      532 nm  T>84%        520-555 nm         4 mm       >60dB       18 mm I-D633-04      633 nm  T>88%        620-640 nm         4 mm       >60dB       18 mm I-D785-04      785 nm  T>88%        770-800 nm         4 mm       >60dB       21 mm I-D808-04      808 nm  T>86%        800-820 nm         4 mm       >60dB       21 mm I-D830-04      830 nm  T>85%        820-845 nm         4 mm       >60dB       21 mm I-D860-04      860 nm  T>85%        845-880 nm         4 mm       >60dB       21 mm  Broad band single stage optical isolators   Model          Isolation 28dB (T>92%Tc) Wavelength range without adjustment  I-B645-04      645 nm  T>90%        600-700 nm         4 mm       >30dB       21 mm I-B785-04      785 nm  T>90%        730-880 nm         4 mm       >30dB       21 mm I-B900-04      900 nm  T>90%       820-1000 nm         4 mm       >30dB       21 mm I-B1000-04    1050 nm  T>90%       940-1130 nm         4 mm       >30dB       21 mm  Broad band dual stages optical isolators  Model          Isolation 56dB (T>85%Tc) Wavelength range without adjustment I-BD633-04     660 nm  T>80%        600-700 nm         4 mm       >58dB       21 mm I-BD785-04     785 nm  T>80%        730-880 nm         4 mm       >58dB       21 mmAperture size around 3 mm I-266-03       266 nm  T>85%        248-270 nm         3 mm       >28dB       25 mm I-355-03       355 nm  T>91%        345-365 nm         3 mm       >33dB       21 mm I-375-03       375 nm  T>91%        365-390 nm         3 mm       >33dB       21 mm I-405-03       405 nm  T>90%        390-415 nm         3 mm       >33dB       18 mm I-420-03       420 nm  T>90%        410-430 nm         3 mm       >33dB       18 mm I-440-03       440 nm  T>90%        430-455 nm         3 mm       >33dB       18 mm I-457-03       457 nm  T>91%        448-465 nm         3 mm       >33dB       18 mm I-473-03       473 nm  T>93%        460-479 nm         3 mm       >35dB       18 mm I-488-03       488 nm  T>93%        480-498 nm         3 mm       >32dB       21 mm I-500-03       500 nm  T>90%        496-515 nm         3 mm       >32dB       18 mm I-515-03       515 nm  T>91%        505-525 nm         3 mm       >35dB       18 mm I-532-03       532 nm  T>91%        520-555 nm         3 mm       >35dB       18 mm I-561-03       561 nm  T>91%        545-580 nm         3 mm       >35dB       18 mm I-593-03       593 nm  T>93%        580-615 nm         3 mm       >35dB       18 mm I-633-03       633 nm  T>93%        610-650 nm         3 mm       >35dB       18 mm I-660-03       660 nm  T>93%        645-675 nm         3 mm       >35dB       18 mm I-685-03       685 nm  T>90%        670-700 nm         3 mm       >35dB       21 mm I-725-03       725 nm  T>90%        700-750 nm         3 mm       >35dB       21 mm I-785-03       785 nm  T>93%        750-810 nm         3 mm       >35dB       21 mm I-808-03       808 nm  T>93%        795-820 nm         3 mm       >35dB       21 mm I-830-03       830 nm  T>93%        800-860 nm         3 mm       >35dB       21 mm I-860-03       860 nm  T>91%        830-900 nm         3 mm       >35dB       21 mm I-880-03       880 nm  T>91%        860-910 nm         3 mm       >35dB       21 mm I-910-03       910 nm  T>91%        890-930 nm         3 mm       >35dB       21 mm I-946-03       946 nm  T>91%        910-980 nm         3 mm       >35dB       21 mm I-980-03       980 nm  T>91%        950-1010 nm        3 mm       >35dB       21 mm I-1030-03     1030 nm  T>91%       1000-1064 nm      2.8 mm       >35dB       21 mm I-1064-03     1064 nm  T>93%       1030-1100 nm      2.8 mm       >35dB       21 mm I-1064-025    1064 nm  T>80%       1053-1100 nm      2.5 mm       >35dB       10 mm I-1064-032    1064 nm  T>80%       1053-1100 nm      3.2 mm       >35dB       10 mm I-1080-03     1080 nm  T>91%       1050-1120 nm        3 mm       >35dB       21 mm I-1080-032    1080 nm  T>81%       1064-1120 nm      3.2 mm       >35dB       10 mm I-1122-03     1122 nm  T>90%       1100-1180 nm        3 mm       >35dB       21 mm I-1250-03     1250 nm  T>90%       1200-1300 nm        3 mm       >35dB       21 mm I-1320-025    1320 nm  T>94%       1300-1380 nm      2.5 mm       >35dB       10 mm I-1550-025    1550 nm  T>94%       1500-1600 nm      2.5 mm       >35dB       10 mm I-1550-032    1550 nm  T>94%       1500-1600 nm      3.2 mm       >35dB       10 mm  Dual stage optical isolators I-D405-03      405 nm  T>82%        395-410 nm         3 mm       >60dB       18 mm I-D440-03      440 nm  T>82%        420-455 nm         3 mm       >60dB       18 mm I-D473-03      473 nm  T>86%        460-479 nm         3 mm       >60dB       18 mm I-D532-03      532 nm  T>84%        520-555 nm         3 mm       >60dB       18 mm I-D633-03      633 nm  T>88%        620-640 nm         3 mm       >60dB       18 mm I-D785-03      785 nm  T>88%        770-800 nm         3 mm       >60dB       21 mm I-D808-03      808 nm  T>86%        800-820 nm         3 mm       >60dB       21 mm I-D830-03      830 nm  T>85%        820-845 nm         3 mm       >60dB       21 mm I-D860-03      860 nm  T>85%        845-880 nm         3 mm       >60dB       21 mm  Broad band single stage optical isolators  Model          Isolation 28dB (T>92%Tc) Wavelength range without adjustment I-B645-03      645 nm  T>90%        600-700 nm         3 mm       >30dB       18 mm I-B785-03      785 nm  T>90%        730-880 nm         3 mm       >30dB       21 mm I-B900-03      900 nm  T>90%       820-1000 nm         3 mm       >30dB       21 mm I-B1000-03    1050 nm  T>90%       940-1130 nm         3 mm       >30dB       21 mm  Broad band dual stages optical isolators  Model          Isolation 55dB (T>85%Tc) Wavelength range without adjustment I-BD633-03     660 nm  T>80%        600-700 nm         3 mm       >58dB       18 mm I-BD785-03     785 nm  T>80%        730-880 nm         3 mm       >58dB       21 mmAperture size 5 or 6 mm  I-355-05       355 nm  T>90%        345-365 nm         5 mm       >30dB       25 mm I-375-05       375 nm  T>90%        365-390 nm         5 mm       >33dB       25 mm I-405-05       405 nm  T>90%        390-415 nm         5 mm       >33dB       18 mm I-440-05       440 nm  T>90%        430-455 nm         5 mm       >33dB       18 mm I-457-05       457 nm  T>90%        448-465 nm         5 mm       >33dB       18 mm I-473-05       473 nm  T>90%        460-479 nm         5 mm       >35dB       18 mm I-488-05       488 nm  T>90%        480-498 nm         5 mm       >32dB       25 mm I-515-05       515 nm  T>90%        505-525 nm         5 mm       >35dB       21 mm I-532-05       532 nm  T>90%        520-555 nm         5 mm       >35dB       21 mm I-561-05       561 nm  T>90%        545-580 nm         5 mm       >35dB       21 mm I-633-05       633 nm  T>90%        610-650 nm         5 mm       >35dB       21 mm I-660-05       660 nm  T>90%        645-675 nm         5 mm       >35dB       21 mm I-685-05       685 nm  T>90%        670-700 nm         5 mm       >35dB       25 mm I-725-05       725 nm  T>90%        700-750 nm         5 mm       >35dB       25 mm I-785-05       785 nm  T>92%        750-810 nm         5 mm       >35dB       25 mm I-808-05       808 nm  T>92%        795-820 nm         5 mm       >35dB       25 mm I-860-05       860 nm  T>91%        830-900 nm         5 mm       >35dB       25 mm I-946-05       946 nm  T>91%        910-980 nm         5 mm       >35dB       25 mm I-980-05       980 nm  T>91%        950-1010 nm        5 mm       >35dB       25 mm I-1030-05     1030 nm  T>91%       1000-1064 nm        5 mm       >35dB       25 mm I-1064-05     1064 nm  T>93%       1030-1100 nm        5 mm       >35dB       25 mm I-1320-05     1320 nm  T>94%       1300-1380 nm        5 mm       >36dB       10 mm I-1550-05     1550 nm  T>94%       1500-1600 nm        5 mm       >36dB       10 mmAperture size 10 and 12 mm I-946-10       946 nm  T>91%         910-980 nm       10 mm       >35dB       40 mm I-980-10       980 nm  T>91%        950-1010 nm       10 mm       >35dB       40 mm I-1030-10     1030 nm  T>91%       1000-1064 nm       10 mm       >35dB       40 mm I-1064-10     1064 nm  T>90%       1030-1100 nm       10 mm       >30dB       40 mm I-946-12       946 nm  T>91%         910-980 nm       12 mm       >35dB       40 mm I-980-12       980 nm  T>91%        950-1010 nm       12 mm       >35dB       40 mm I-1030-12     1030 nm  T>91%       1000-1064 nm       12 mm       >35dB       40 mm I-1064-12     1064 nm  T>90%       1030-1100 nm       12 mm       >30dB       40 mm

To avoid high power laser damage, a larger aperture size isolator with -E option is prefered. if the power >10W, pleasecontact CrystaLaser directly.
Gaussian beam isolator Aperture size Selection: 2x larger than input laser beam size (Gaussian beam diameter at 1/e²) to avoids aperture limited transmission loss.
For a laser beam diameter up to 2mm, a 4 mm aperture optical isolator is a good selection.

The dimensions of the optical isolators are shown in second page of the Specifications of the Optical Isolators.

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Optical Isolators - Faraday Isolators

Compact designWavelength UV-visible-IRProven in laser systemHigh isolationLow loss

Faraday Optical Isolators

Compact designWavelength UV-visible-IRProven in laser system High isolation Low loss