Measurements of gain profile in COIL using a tunable laser diode

Keiichi Mito; Hiroshi Ohue; Tsutomu Fukuda; Hiroo Fujii; Eiji Kasahara

doi:10.1117/12.144695

4 May 1993 Measurements of gain profile in COIL using a tunable laser diode

Keiichi Mito, Hiroshi Ohue, Tsutomu Fukuda, Hiroo Fujii, Eiji Kasahara

Proceedings Volume 1810, 9th International Symposium on Gas Flow and Chemical Lasers; (1993) https://doi.org/10.1117/12.144695
Event: Ninth International Symposium on Gas Flow and Chemical Lasers, 1992, Heraklion, Greece

Abstract

A new method for small-signal gain measurements which uses a distributed feedback laser diode (DFB laser diode) as a probe laser has been developed. In this method, as the wavelength of the probe laser can be changed continuously, not only the small-signal gain but also the gain profile can be measured. Small-signal gain with the gain profile of a chemical oxygen iodine laser was measured by applying this method. Moreover, from the line width of the observed gain profile, the temperature of the laser medium was estimated.

Citation Download Citation

Keiichi Mito, Hiroshi Ohue, Tsutomu Fukuda, Hiroo Fujii, and Eiji Kasahara "Measurements of gain profile in COIL using a tunable laser diode", Proc. SPIE 1810, 9th International Symposium on Gas Flow and Chemical Lasers, (4 May 1993); https://doi.org/10.1117/12.144695

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