1983 Volume 11 Issue 11 Pages 834-841
An infrared optical fiber using Tl Br-Tl I applicable to CO2laser has been newly developed.
The most preferable composition for the fiber has been investigated to be 43 weight% Tl Br, and under this composition the fiber with 0.5 mm diameter and 1.5 m length has following excellent characteristics. (1) High output power of 70 watts, (2) high transmissibility of 96%/m, (3) minimum bend radius of 10 cm, (4) transmission spectra from 4μm to 22μm. This fiber has been put into practical use for a new CO2laser scalpel, and is expected to be used for many promising applications such as laser processing machines, infrared measuring instruments, etc..
