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Title: Intracavity optically controlled crystal modulators for a CO/sub 2/ laser

Abstract

This paper presents the results of studies of intracavity amplitude modulation of CW CO/sub 2/ laser radiation by its optically controlled absorption on nonequilibrium charge carriers (NCC) in KRS-5, KRS-6, and ZnSe crystals. The fundamental variables which determine the efficiency of such a modulation method are discussed. The radiation from a ruby laser with a 35-nsec pulse width was used to produce the nonequilibrium charge carriers. The variation of the modulation percentage of the intensity vs. excitation level at lambda = 0.6943 ..mu..m is shown for different powers of the CO/sub 2/ laser. The studies attest to the relatively high efficiency of intracavity modulation based on IR radiation absorption by NCC in crystals, where the NCC are generated under the influence of external excitation.

Authors:
;
Publication Date:
OSTI Identifier:
5225683
Alternate Identifier(s):
OSTI ID: 5225683
Resource Type:
Journal Article
Journal Name:
J. Appl. Spectrosc. (Engl. Transl.); (United States)
Additional Journal Information:
Journal Volume: 43:6
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; CARBON DIOXIDE LASERS; OPTICAL PUMPING; LASER CAVITIES; CRYSTALS; LASER RADIATION; ABSORPTION; MODULATION; AMPLITUDES; CHARGE CARRIERS; ENERGY EFFICIENCY; LASER MATERIALS; RUBY LASERS; THALLIUM BROMIDES; THALLIUM CHLORIDES; THALLIUM IODIDES; ZINC SELENIDES; BROMIDES; BROMINE COMPOUNDS; CHALCOGENIDES; CHLORIDES; CHLORINE COMPOUNDS; EFFICIENCY; ELECTROMAGNETIC RADIATION; GAS LASERS; HALIDES; HALOGEN COMPOUNDS; IODIDES; IODINE COMPOUNDS; LASERS; MATERIALS; PUMPING; RADIATIONS; SELENIDES; SELENIUM COMPOUNDS; SOLID STATE LASERS; THALLIUM COMPOUNDS; THALLIUM HALIDES; ZINC COMPOUNDS 420500* -- Engineering-- Materials Testing

Citation Formats

Chizhevskii, V.N., and Churakov, V.V. Intracavity optically controlled crystal modulators for a CO/sub 2/ laser. United States: N. p., 1986. Web.
Chizhevskii, V.N., & Churakov, V.V. Intracavity optically controlled crystal modulators for a CO/sub 2/ laser. United States.
Chizhevskii, V.N., and Churakov, V.V. Sun . "Intracavity optically controlled crystal modulators for a CO/sub 2/ laser". United States.
@article{osti_5225683,
title = {Intracavity optically controlled crystal modulators for a CO/sub 2/ laser},
author = {Chizhevskii, V.N. and Churakov, V.V.},
abstractNote = {This paper presents the results of studies of intracavity amplitude modulation of CW CO/sub 2/ laser radiation by its optically controlled absorption on nonequilibrium charge carriers (NCC) in KRS-5, KRS-6, and ZnSe crystals. The fundamental variables which determine the efficiency of such a modulation method are discussed. The radiation from a ruby laser with a 35-nsec pulse width was used to produce the nonequilibrium charge carriers. The variation of the modulation percentage of the intensity vs. excitation level at lambda = 0.6943 ..mu..m is shown for different powers of the CO/sub 2/ laser. The studies attest to the relatively high efficiency of intracavity modulation based on IR radiation absorption by NCC in crystals, where the NCC are generated under the influence of external excitation.},
doi = {},
journal = {J. Appl. Spectrosc. (Engl. Transl.); (United States)},
number = ,
volume = 43:6,
place = {United States},
year = {1986},
month = {6}
}