Transient Properties Of Small-Signal Gain In A Fast Axial-Flow Type Co[sub]2 [/sub]Laser Amplifier

Eiichi Tsuchida; Heihachi Sato

doi:10.1117/12.967362

1 January 1987 Transient Properties Of Small-Signal Gain In A Fast Axial-Flow Type Co₂Laser Amplifier

Eiichi Tsuchida, Heihachi Sato

Proceedings Volume 0813, Optics and the Information Age; (1987) https://doi.org/10.1117/12.967362
Event: 14th Congress of the International Commission for Optics, 1987, Quebec, Canada

Abstract

A fast axial-flow type (FAF) CO2 laser is much expected for applications towards machinery, welding and medical uses. So far, extensive efforts have been devoted into enhancement of its oscillation power and efficiency from rather practical point of view.1)Its laser parameters such as small-signal gain, saturation irradiance and linewidth have not been investigated too much in detail. In the present paper we shall, thus, report the theoretical analysis of transient properties in small-signal gain, which have been experimentally observed for a FAF CO2 laser amplifier modified from the CW 500 W class oscillator. Taking account of thermal diffusion, dissociation of CO2 molecules and saturation effect into the gain constant, temporal properties of the small-signal gain and output power will be theoretically treated, and the experimental results will be explained by the theoretical estimates.

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Eiichi Tsuchida and Heihachi Sato "Transient Properties Of Small-Signal Gain In A Fast Axial-Flow Type Co₂Laser Amplifier", Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); https://doi.org/10.1117/12.967362

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