Beamsplitter Plates



Non-polarizing Beamsplitter Plates

Non-polarizing Beamsplitter plates are primarily used to split or re-combine a beam of light, especially in high power lasers. When using Non-polarizing beamsplitter plates the two partial beams travel different optical paths. The optical paths depend on the incident angle and the thickness of the plates. The beam can be shifted.

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Material: BK-7 grade A optical glass
Diameter Range: 10mm to 50.8mm
Dimensional Tolerance: ±0.2mm
Thickness Tolerance: ±0.2mm
Flatness: λ /4 @632.8nm per 25mm
Surface Quality/Scratch & Dig: 60/40
Parallelism: 1 arc minute
T/R: 50/50 ±5% for random polarization T=(Ts + Tp), R=(Rs + Rp)/2
Coatings: surface 1&2: (incidence angle: 45°)
S1: Single wavelength partial reflectance
S2: “V” AR-coatings

Pricing and ordering info

Model Narrow Broad Size mm Shape RND/SQ Price $
BSNN1-12.7S-X N 12.7×12.7×3 SQ 56
BSNN1-25.4S-X N 25.4×25.4×3 SQ 78
BSNN1-25.4R-X N 25.4×3 RND 78
BSNN1-50.8S-X N 50.8×50.8×3 SQ 129
BSNB1-12.7S-Y B 12.7×12.7×3 SQ 67
BSNB1-25.4S-Y B 25.4×25.4×3 SQ 83
BSNB1-25.4R-Y B 25.4×3 RND 83
BSNB1-50.8S-Y B 50.8×50.8×3 SQ 133

X = Narrow Band Wavelengths: 488, 514, 633, 780, 850, 1064, 1300, 1550 nm
Y = Broad Band Ranges(nm): 1=450-680, 2=650-850, 3=900-1200, 4=1200-1550

The above Beamsplitter specifications are general, we would be happy to quote for your specific requirements.

We make custom versions of everything on this site. Send us your drawings or specifications and we will provide a quotation.