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    • Telecom Waveplates

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    Specifications:

     

    Material Crystal Quartz
    Diameter Tolerance +0/-0.1mm
    Design Wavelength 1550nm
    Retardance Accuracy <λ/300 @ 1550nm
    Surface Quality 40/20
    Wavefront  Distortion λ/4 @ 632.8nm over the full aperture
    Parallelism ≤3″
    AR Coating Both surfaces R<0.25% @ 1525-1565nm
    Damage Threshold 500W/cm2,4J/cm2,20ns

     

     

     

     

     

    Order Information:

     

    WPT ---- 040 ---- 030 ---- 1/4 ---- W1550
           
    Product Code   Length=4.0mm   Width=3.0mm   Retardation=λ/4   Wavelength "λ"=1550nm

     

    Types:

        “1/4”means Quarter  Waveplate

        “1/2”  means Half  Waveplate

     

    Also, please provide the angle θ.

     

    Telecom waveplates are designed and  manufactured specifically to meet the demanding requirements of telecom component designers.

    CASTECH provides telecom waveplate with many kinds of sizes , they are 91.5μm thick for the half-waveplate and 45.7μm thick for the quarter-waveplate at 1550nm. The telecom waveplates are AR coated from 1525nm to 1565nm in order to minimize surface reflection losses.

     

    Standard Telecom Waveplates:

     

    size    Design Wavelength    AR Coating Retardation
     Kinds of  size 1550nm R<0.25% @ 1525-1565nm    λ/4或λ/2   

     

    Note:Custom designs for other specifications and coating are also available upon request.

     

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