Abstract

Chalcogenide glasses are promising materials for producing different optical elements for integral and optoelectronics and laser devices. Generally it is due to the properties of the glasses, which are transparent in the visible and infrared region of the spectrum and possess different values of refractive indices and relatively low optical and acoustooptical losses. However, their relatively low damage threshold is the main restriction for their wide application. As is known, the damage threshold of the material is mostly defined by linear and nonlinear losses of laser radiation whose value essentially depends on the glass composition and responsive mean coordination number of covalent bonds per atom. The concentration dependencies of these parameters for ternary glasses Ge-As-S are discussed in the present report.

© 1994 IEEE