Transmission Grating Beamsplitter for He-Ne Laser

Transmission Grating Beamsplitters

Optometrics

Transmission Grating Beamsplitters

Transmission Grating Beamsplitter for He-Ne Lasers

Optometrics transmission grating beamsplitters are commonly used for laser beam division and multiple laser line separation in visible wavelengths to diffract the transmitted beam into multiple orders.

They consist of an index matched epoxy replica on a polished glass substrate resulting in high total efficiency. These beamsplitters are designed specifically for useful division of He-Ne lasers.

Several types of gratings are available that offer different dispersion and power distributions. The diffraction angle for any wavelength may be calculated using the grating equation for normal incident light.

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Product SKUs

Transmission Grating Beam Splitter Specifications | TGB110-12.7

Optical Coating	Aluminum	Grooves Per mm	110
632.8 nm Efficiency at -2nd Order	N/A	632.8 nm Efficiency at -1st Order	25% Nominal
632.8 nm Efficiency at 0th Order	28% Nominal	632.8 nm Efficiency at +1st Order	25% Nominal
632.8 nm Efficiency at +2nd Order	N/A	Substrate	B-270
Size (mm)	12.7 mm Sq.	Size Tolerance	±0.5 mm
Thickness	3 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	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

Transmission Grating Beam Splitter Specifications | TGB110-25

Optical Coating	Aluminum	Grooves Per mm	110
632.8 nm Efficiency at -2nd Order	N/A	632.8 nm Efficiency at -1st Order	25% Nominal
632.8 nm Efficiency at 0th Order	28% Nominal	632.8 nm Efficiency at +1st Order	25% Nominal
632.8 nm Efficiency at +2nd Order	N/A	Substrate	B-270
Size (mm)	25 mm Sq.	Size Tolerance	±0.5 mm
Thickness	3 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	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

Transmission Grating Beam Splitter Specifications | TGB70-12.7

Optical Coating	Aluminum	Grooves Per mm	70
632.8 nm Efficiency at -2nd Order	N/A	632.8 nm Efficiency at -1st Order	N/A
632.8 nm Efficiency at 0th Order	41% Nominal	632.8 nm Efficiency at +1st Order	32% Nominal
632.8 nm Efficiency at +2nd Order	N/A	Substrate	B-270
Size (mm)	12.7 mm Sq.	Size Tolerance	±0.5 mm
Thickness	3 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	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

Transmission Grating Beam Splitter Specifications | TGB70-25

Optical Coating	Aluminum	Grooves Per mm	70
632.8 nm Efficiency at -2nd Order	N/A	632.8 nm Efficiency at -1st Order	N/A
632.8 nm Efficiency at 0th Order	41% Nominal	632.8 nm Efficiency at +1st Order	32% Nominal
632.8 nm Efficiency at +2nd Order	N/A	Substrate	B-270
Size (mm)	25 mm Sq.	Size Tolerance	±0.5 mm
Thickness	3 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	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

Transmission Grating Beam Splitter Specifications | TGB80-12.7

Optical Coating	Aluminum	Grooves Per mm	80
632.8 nm Efficiency at -2nd Order	5% Nominal	632.8 nm Efficiency at -1st Order	25% Nominal
632.8 nm Efficiency at 0th Order	25% Nominal	632.8 nm Efficiency at +1st Order	25% Nominal
632.8 nm Efficiency at +2nd Order	5% Nominal	Substrate	B-270
Size (mm)	12.7 mm Sq.	Size Tolerance	±0.5 mm
Thickness	3 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	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

Transmission Grating Beam Splitter Specifications | TGB80-25

Optical Coating	Aluminum	Grooves Per mm	80
632.8 nm Efficiency at -2nd Order	5% Nominal	632.8 nm Efficiency at -1st Order	25% Nominal
632.8 nm Efficiency at 0th Order	25% Nominal	632.8 nm Efficiency at +1st Order	25% Nominal
632.8 nm Efficiency at +2nd Order	5% Nominal	Substrate	B-270
Size (mm)	25 mm Sq.	Size Tolerance	±0.5 mm
Thickness	3 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	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

Transmission Grating Beam Splitter Specifications | TGB92-12.7

Optical Coating	Aluminum	Grooves Per mm	92
632.8 nm Efficiency at -2nd Order	N/A	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	N/A	Substrate	B-270
Size (mm)	12.7 mm Sq.	Size Tolerance	±0.5 mm
Thickness	3 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	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

Transmission Grating Beam Splitter Specifications | TGB92-25

Optical Coating	Aluminum	Grooves Per mm	92
632.8 nm Efficiency at -2nd Order	N/A	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	N/A	Substrate	B-270
Size (mm)	25 mm Sq.	Size Tolerance	±0.5 mm
Thickness	3 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	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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Transmission Grating Beamsplitters

Optometrics

Transmission Grating Beamsplitter for He-Ne Lasers

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Product SKUs

110 Groove, Transmission Grating Beamsplitter, 12.7 mm Sq., 3 mm Thick

Transmission Grating Beam Splitter Specifications | TGB110-12.7

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

Transmission Grating Beam Splitter Specifications | TGB110-25

70 Groove, Transmission Grating Beamsplitter, 12.7 mm Sq., 3 mm Thick

Transmission Grating Beam Splitter Specifications | TGB70-12.7

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

Transmission Grating Beam Splitter Specifications | TGB70-25

80 Groove, Transmission Grating Beamsplitter, 12.7 mm Sq., 3 mm Thick

Transmission Grating Beam Splitter Specifications | TGB80-12.7

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

Transmission Grating Beam Splitter Specifications | TGB80-25

92 Groove, Transmission Grating Beamsplitter, 12.7 mm Sq., 3 mm Thick

Transmission Grating Beam Splitter Specifications | TGB92-12.7

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

Transmission Grating Beam Splitter Specifications | TGB92-25

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