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Non Polarizing Plate Beam Splitters

Non-Polarizing Plate Beamsplitters

1. Substrates:

- Material: UV fused silica or BK-7
- 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. Transmitted Wavefront Error: λ/8 @ 633nm for regular plate windows, > λ/4 per mm for super thin plate windows

3. Damage Threshold: > 100 mJ/cm2, 10ns, 10Hz @ 1064nm

4. |Rs-Rp|, |Ts-Tp| < 5%

 

Non-polarizing plate beamsplitters (NPPBS) separate 45˚ input beam into two beams with preserving each polarization in transmission and reflection. These are an ideal choice for high power laser application which requires high damage threshold the cemented cube beamsplitter can't be used. SP Optics Division provides these NPPBS for various wavelengths.

 

1. Regular Plate

Wavelength (nm)

Material

R/T

Size

Part Number

Price ($ USD)

532 UV FS 50/50 (±5%) 1" X 1/4" NPPBS-532-50-1025-FS $550
2" X 1/4" NPPBS-532-50-2025-FS $675
BK-7 1" X 1/4" NPPBS-532-50-1025-BK $410
2" X 1/4" NPPBS-532-50-2025-BK $495
1064 UV FS 50/50 (±3%) 1" X 1/4" NPPBS-1064-50-1025-FS $550
2" X 1/4" NPPBS-1064-50-2025-FS $675
BK-7 1" X 1/4" NPPBS-1064-50-1025-BK $410
2" X 1/4" NPPBS-1064-50-2025-BK $495

 

2. Super Thin Plate

Wavelength (nm)

Material

R/T

Size

Part Number

Price ($ USD)

532 BK-7 50/50 (±5%) 25mm STNPBS-532-50-025-BK $350
1064 50/50 (±3%) STNPBS-1064-50-025-BK

 

NOTE:

1. Other wavelengths and other R/T ratios are available on request.

2. Please describe your custom requirements when you contact us.

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