Transmission Grating Beam Splitters

Transmission Grating Beam Splitters

Transmission Grating Beamsplitter
Transmission Grating Beam Splitter

Transmission grating beam splitters are commonly used for laser beam division and multiple laser line separation in visible wavelengths. The transmitted beam is diffracted into multiple orders.

Our transmission grating beam splitters consist of an index matched epoxy replica on a polished glass substrate for a high total efficiency. These beam splitters were designed specifically for useful division of He-Ne lasers.

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

For more detailed technical information, click here.

Product SKUs

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

    Transmission Grating Beam Splitter Specifications | TGB110-12.7

    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

    Optical Coating

    Aluminum

    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

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

    Transmission Grating Beam Splitter Specifications | TGB110-25

    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

    Optical Coating

    Aluminum

    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

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

    Transmission Grating Beam Splitter Specifications | TGB70-12.7

    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

    Optical Coating

    Aluminum

    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

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

    TGB70-25
    $307.00
    Available on backorder
    Add to cart

    Transmission Grating Beam Splitter Specifications | TGB70-25

    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

    Optical Coating

    Aluminum

    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

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

    Transmission Grating Beam Splitter Specifications | TGB80-12.7

    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

    Optical Coating

    Aluminum

    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

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

    Transmission Grating Beam Splitter Specifications | TGB80-25

    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

    Optical Coating

    Aluminum

    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

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

    Transmission Grating Beam Splitter Specifications | TGB92-12.7

    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

    Optical Coating

    Aluminum

    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

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

    Transmission Grating Beam Splitter Specifications | TGB92-25

    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

    Optical Coating

    Aluminum

    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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