FIBER LIGHT GUIDE OF ARSENIC SULFITE GLASSES Russian patent published in 2022 - IPC C03C13/04 C03C3/32 G02B6/02 

FIELD: optical materials.

SUBSTANCE: the invention can be used to create special optical instruments and functional elements of infrared photonics – infrared radiation transmission devices for eye microsurgery, non-contact fiber pyrometers for monitoring body temperature in the treatment of cancer, fiber splitters for the mid-infrared range, fiber lasers, fiber-optic micro resonators and for many other devices. Fiber infrared light guides based on high-purity sulfide-arsenic glasses can be used to control the temperature of generators in conditions of strong magnetic fields, ionizing radiation for the transfer of thermal energy through bundles of infrared light guides. In an arsenic sulfide glass optical fiber consisting of a core and a cladding the core is made of glass of composition from 40 to 42 atomic percent of arsenic and from 58 to 60 atomic percent of sulfur, the reflective shell is made of glass of composition from 38 to 42 atomic percent of arsenic and from 58 to 62 atomic percent of sulfur.

EFFECT: reducing the level of optical losses in the spectral range of 5-6 microns.

1 cl, 1 tbl, 3 ex