Intracavity optically controlled crystal modulators for a CO/sub 2/ laser
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.
- OSTI ID:
- 5225683
- Journal Information:
- J. Appl. Spectrosc. (Engl. Transl.); (United States), Journal Name: J. Appl. Spectrosc. (Engl. Transl.); (United States) Vol. 43:6; ISSN JASYA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420500* -- Engineering-- Materials Testing
ABSORPTION
AMPLITUDES
BROMIDES
BROMINE COMPOUNDS
CARBON DIOXIDE LASERS
CHALCOGENIDES
CHARGE CARRIERS
CHLORIDES
CHLORINE COMPOUNDS
CRYSTALS
EFFICIENCY
ELECTROMAGNETIC RADIATION
ENERGY EFFICIENCY
GAS LASERS
HALIDES
HALOGEN COMPOUNDS
IODIDES
IODINE COMPOUNDS
LASER CAVITIES
LASER MATERIALS
LASER RADIATION
LASERS
MATERIALS
MODULATION
OPTICAL PUMPING
PUMPING
RADIATIONS
RUBY LASERS
SELENIDES
SELENIUM COMPOUNDS
SOLID STATE LASERS
THALLIUM BROMIDES
THALLIUM CHLORIDES
THALLIUM COMPOUNDS
THALLIUM HALIDES
THALLIUM IODIDES
ZINC COMPOUNDS
ZINC SELENIDES