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    • 光隔離器
     
    光隔離器

     

    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.


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