Company Products

Company’s products are volume Bragg gratings recorded in a photo-thermo-refractive (PTR) glass. Volume Bragg grating is a periodical system of planes with modified refractive index which diffracts optical radiation (see details in White Paper by clicking on the following link). PTR glass is transparent from 350 to 2700 nm with near-IR absorption below 10^-3 cm^-1 and dn/dT=-0.1 ppm/K. Bragg gratings are thermally-stable up to 400 C; their resistance to CW laser radiation exceeds 10 kW/cm², and laser-induced damage threshold is 40 J/cm² for 8-ns-pulse width.

Transmitting Bragg grating (TBG) has diffracted beam crossing the back side of a glass plate. Reflecting Bragg grating (RBG) has diffracted beam crossing the front side of a glass plate.