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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