VBG is a grating obtained by holographic exposure in a photosensitive glass crystal. The grating has high damage threshold, low power loss, narrow line width, and good temperature stability. The laser integrated with VBG grating can reduce the line width, improve the center wavelength accuracy and wavelength stability. USHIO (formerly PD-LD) has the exclusive patent right for the technique.
VBG is a grating obtained by holographic exposure in a photosensitive glass crystal. The grating has high damage threshold, low power loss, narrow line width, and good temperature stability. The laser integrated with VBG grating can reduce the line width, improve the center wavelength accuracy and wavelength stability. USHIO (formerly PD-LD) has the exclusive patent right for the technique.
