China star optics can provide customers with a variety of replicated grating products such as diffraction gratings, transmission gratings and holographic gratings to meet different needs. Maximum ruled area is up to 300x300mm2 for plane ruled diffraction gratings. For replicated diffraction and transmission gratings the ruling density can be from 20 grooves per millimeter to 2400 grooves per millimeter, wavelength from 0.2 micron to 25 microns.

Specification of holographic gratings:

Ruled area: <=70 * 70mm

Wavelength range: 0.2-0.8um

Grooves per mm: 1,200 to 3,600L/mm

Diffraction: >70%

Specification of ruled gratings:

Ruled area: <=70 * 70mm

Wavelength range: 0.2-15um

Grooves per mm: 50 to 2,400L/mm

Diffraction: >70%

Specification of concave gratings:

Ruled area: <=70 * 70mm

Wavelength range: 200 to 900um

Grooves per mm: 490 to 1,200L/mm

Diffraction: >70%