Transmission Grating Beamsplitters
Transmission grating beamsplitters are commonly used for He-Ne laser beam division and multiple laser line separation in visible wavelengths. The transmitted beam is diffracted into multiple orders.  Transmission grating beamsplitters consist of a refractive index matched epoxy replica on a polished glass substrate in order to get a high total diffraction efficiency. These beamsplitters are specially designed for He-Ne laser.
Transmission Grating Beamsplitters
Precautions:
Optical gratings can be easily damaged by moisture, fingerprints, aerosols, or the slightest contact with any abrasive material. Gratings should only be handled when necessary and always held by the sides. Latex gloves or a similar protective covering should be worn to prevent oil from fingers from reaching the grating surface. No attempt should be made to clean a grating other than blowing off dust with clean, dry air or nitrogen. Solvents will likely damage the grating's surface.
Substrate Material B270
Surface Quality 60-40
Dimension Tolerance ± 0.5 mm
Thickness Tolerance 3± 0.2 mm
Efficiency 45%~ 65% @ Peak Wavelength
Clear Aperture 90%
Damage Threshold 1 50mJ/cm² @200ns Pulsed Laser
Damage Threshold 2 40W/cm²(CW)Continuous Laser
Pro No.
Parameter
Size
Groove Density
Substrate Material
Efficiency
Delivery time
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Price
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12.7x12.7x6mm
70Lines/mm
B270
45%~ 65% @Peak Wavelength
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12.7x12.7x6mm
80Lines/mm
B270
45%~ 66% @Peak Wavelength
Consult
Consult
12.7x12.7x6mm
92Lines/mm
B270
45%~ 67% @Peak Wavelength
Consult
Consult
12.7x12.7x6mm
110Lines/mm
B270
45%~ 68% @Peak Wavelength
Consult
Consult
25x25x9.5mm
70Lines/mm
B270
45%~ 69% @Peak Wavelength
Consult
Consult
25x25x9.5mm
80Lines/mm
B270
45%~ 70% @Peak Wavelength
Consult
Consult
25x25x9.5mm
92Lines/mm
B270
45%~ 71% @Peak Wavelength
Consult
Consult
25x25x9.5mm
110Lines/mm
B270
45%~ 72% @Peak Wavelength
Consult
Consult

Our company has two types of manuals: Optical Devices & Photoelectric Instruments Manual and Visual Imaging Manual

Optical devices & optoelectronic instruments manual: The products in the manual include: optical components, laser components, optomechanical components, lenses and light sources, measuring instruments, and optical materials. In addition to these standard products, it also provides large-size ultra-precision planar optical component customization, spherical optical customization, aspheric optical customization, imaging lens design customization, optical design customization, and precision angle component customization.

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