• Polarizing Plate Beamsplitters

    Polarizing Plate Beamsplitter
    1. Substrates:
      • Material: UV fused silica or BK7
      • Clear Aperture: larger than 85%
      • Surface Quality (Scratch-Dig): 10-5 for regular plate windows 60-40 for super thin plate windows
      • Surface Flatness: λ/10 @633nm for regular plate windows, λ/10 per mm @633nm for super thin plate windows
      • Thickness: 0.25" ±0.01" for regular plate windows 0.15mm ±0.02mm for super thin plate windows
      • Bevel: <0.5mm @45˚ typical
    2. Polarizing Plate Beamsplitter, Super thin substrate Transmitted Wavefront Error: λ/8 at 633nm for regular plate windows, >λ/4 per mm for super thin plate windows
    3. Damage Threshold: 10J/cm2, 20ns, 20Hz @1064nm; 1MW/cm2, CW @1064nm
    Polarizing plate beam splitters (PPBS) separates input beam into two beams by reflecting S-polarization beam and transmitting P-polarization. These are an ideal choice for high power laser application which requires high damage threshold. Spectral Optics provide these PPBS for Brewster's angle (56°) and for 45°. The Brewster's angle PPBS give higher extinction ratio but the reflected beam has this Brewster's angle. The 45° angle PPBS have lower extinction ratio but make it easy to use in the optical setup and also can be used as beam combiners. These PPBS are mostly used for high power Nd:YAG laser applications but Spectral Optics can provide any wavelength PPBS on customer's request.
     

    Product Lists:

    1. Regular Plate:
    λ (nm)  AOI (°)  Material  Tp (%)  Tp/Ts  Size  Part Number  Price (USD) 
    248 56 ± 3 UV FS 85 100/1 1" X 1/4" PPBS-248-1025-FS-56  $1050
    2" X 1/4" PPBS-248-2025-FS-56 $1435
    266 56 ± 3  UV FS  85  100/1  1" X 1/4" PPBS-266-1025-FS-56  $1050
    2" X 1/4" PPBS-266-2025-FS-56 $1435
    355 56 ± 3  UV FS  90  100/1  1" X 1/4" PPBS-355-1025-FS-56  $630
    2" X 1/4" PPBS-355-2025-FS-56 $995
    532 56 ± 3  BK7  95  200/1  1" X 1/4" PPBS-532-1025-BK-56  $375
    2" X 1/4" PPBS-532-2025-BK-56 $520
     45 BK7  >96  500/1  1" X 1/4" PPBS-532-1025-BK-45 $495
    2" X 1/4" PPBS-532-2025-BK-45 $885
    1064 56 ± 3  BK7  95  200/1  1" X 1/4" PPBS-1064-1025-BK-56  $325
    2" X 1/4" PPBS-1064-2025-BK-56 $455
     45 BK7  >97  500/1  1" X 1/4" PPBS-1064-1025-BK-45 $445
    2" X 1/4" PPBS-1064-2025-BK-45 $845
    2. Super Thin Plate:
    λ (nm)  AOI (°)  Material  Tp (%)  Tp/Ts  Size  Part Number  Price (USD) 
    532 56 ± 3  BK7  95  200/1 25mm STPPBS-532-025-BK-56  $275
     45 BK7  >96  500/1 25mm STPPBS-532-025-BK-45 $395
    1064 56 ± 3  BK7  95  200/1 25mm STPPBS-1064-025-BK-56  $225
     45 BK7  >97  500/1 25mm STPPBS-1064-025-BK-45 $345


    NOTE:
    1. The selection of the substrate material is dependent on the wavelength.
    2. Please describe your custom requirements on the RFQ form.
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