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.

Feature:
Block optical feedback
Passive isolation of linearly polarized light
High isolation
RoHS Compliant

Specifications:
Material: -------------------------------------------------------------------------BK7&Crystal Quartz
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
 

Standard Product


Part No.

Dimension(mm)

 Isolation(dB)

 Wavelength(mm)

OI8005-532

5x5x5

>20

532

OI8010-532

10x10x10

>20

532

OI8012-532

12.7x12.7x12.7

>20

532

OI8005-633

5x5x5

>20

633

OI8010-633

10x10x10

>20

633

OI8012-633

12.7x12.7x12.7

>20

633

OI8005-780

5x5x5

>20

780

OI8010-780

10x10x10

>20

780

OI8012-780

12.7x12.7x12.7

>20

780

OI8005-1064

5x5x5

>20

1064

OI8010-1064

10x10x10

>20

1064

OI8012-1064

12.7x12.7x12.7

>20

1064

OI8005-1550

5x5x5

>20

1550

OI8010-1550

10x10x10

>20

1550

OI8012-1550

12.7x12.7x12.7

>20

1550




 

Note: Other sizes, wavelength are available upon request.