Transmission Grating Beamsplitters

92 Groove, Transmission Grating Beamsplitter, 25 mm Sq., 3 mm Thick

Price: $307.00

Transmission Grating Beam Splitter Specifications | TGB92-25

Grooves Per mm


632.8 nm Efficiency at -2nd Order


632.8 nm Efficiency at -1st Order

20% Nominal

632.8 nm Efficiency at 0th Order

45% Nominal

632.8 nm Efficiency at +1st Order

20% Nominal

632.8 nm Efficiency at +2nd Order




Size (mm)

25 mm Sq.

Size Tolerance

±0.5 mm


3 mm

Thickness Tolerance

±0.5 mm

Optical Coating




Clear Aperture


Edge Angle

90° ±0.50°


90° ±0.50°

Operating Temperature Range

-50° C to +125° C

Damage Threshold: Pulsed

350 mJ/cm², 200 nano sec. pulse

Damage Threshold: CW laser

40 watts/cm²

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