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| Products
-> Polarizer -> Optical Isolator |
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| Optical
Isolator |
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| 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 which 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. |
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- Block
optical feedback
- Passive
isolation of linearly polarized light
- High
isolation
- RoHS
Compliant
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| Specifications |
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| Material |
Crystal
Quartz & BK7 |
| Dimension
Tolerance |
±0.2mm |
| Surface
Quality |
60/40 |
| Beam
Deviation |
<3
arc minutes |
| Transmitted
Wavefront Distortion |
λ/4@632.8nm |
| Isolation |
>20dB |
| Transmission |
Tp>95%,
Ts<1% |
| Reflection |
Rs>99%,
Rp<5% |
| AR
Coating |
R<0.25%@
central wavelength on all entrances |
| Damage
Threshold |
>500mJ/cm2,
20ns, 20Hz, @1064nm |
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| Ordering
Information |
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OIS-12.7-1064:
OIS-Lateral Dimension-Wavelength |
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