Optical Isolator Description
The optical isolator is a combination of a polarization Beamsplitter cube (PBS) and a quarter waveplate made of crystal quartz. Incident light is linearly polarized by PBS and converted to circular polarization by the quarter waveplate. If any portion of the emerging beam is reflected back into the isolator, the quarter waveplate will convert the reflected beam into a linearly polarized beam that is perpendicular to the input beam. This beam is then blocked by PBS and it will not return to the input side of the system.
Optical Isolator Specifications
Material
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Quartz+BK7
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Dimensional Tolerance (mm)
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±0.2
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Split Ratio
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Rs>99% Rp<5%, TP> 95% Ts<1%
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Isolation
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>20dB
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Beam Deviation(arcmin)
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<3
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Clear Aperture
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>90%
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Surface Quality
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60/40
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Transmitted Wavefront Distortion
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<λ/4@633nm
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Damage Threshold(pulsed)
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>500mJ/cm² (20ns 20Hz @1064nm)
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*For more information on Optical and Nonlinear Optical Properties, please contact us.
Optical Isolator Application
Optical isolators are suitable for manifold applications including IR Thermal Imaging & Thermal Sensing, IR Thermography, IR light Emitters & Detectors, etc.
Optical Isolator Packaging
Our Optical isolator is carefully handled during storage and transportation to preserve the quality of our product in its original condition.