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Title: Brightness and filamentation of a beam from powerful cw quantum-well In{sub 0.2}Ga{sub 0.8}As/GaAs lasers

Abstract

Near- and far-field patterns are studied for powerful (above 2-W cw output) quantum-well heterojunction InGaAs/AlGaAs/GaAs lasers. The maximum radiation brightness was 1.7{center_dot}10{sup 7} W cm{sup -2} sr{sup -1}. It is shown that the radiation filamentation is already observed 10 - 20% above the lasing threshold. The filamentation period decreases from 50 to 10 {mu}m with increasing pumping current from almost the lasing threshold to an excess of 20% over the threshold. The filamentation results in the tenfold decrease in the radiation brightness of lasers compared to the theoretical value. (lasers)

Authors:
;  [1];  [2];  [3]
  1. P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
  2. Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region (Russian Federation)
  3. M.F. Stel'makh Polyus Research and Development Institute, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
21454673
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 30; Journal Issue: 5; Other Information: DOI: 10.1070/QE2000v030n05ABEH001732; Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALUMINIUM ARSENIDES; BEAMS; BRIGHTNESS; ELECTRICAL PUMPING; GALLIUM ARSENIDES; HETEROJUNCTIONS; INDIUM ARSENIDES; LASERS; QUANTUM WELLS; ALUMINIUM COMPOUNDS; ARSENIC COMPOUNDS; ARSENIDES; GALLIUM COMPOUNDS; INDIUM COMPOUNDS; NANOSTRUCTURES; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; PNICTIDES; PUMPING; SEMICONDUCTOR JUNCTIONS

Citation Formats

Bogatov, Alexandr P, Drakin, A E, Stratonnikov, Aleksei A, and Konyaev, V P. Brightness and filamentation of a beam from powerful cw quantum-well In{sub 0.2}Ga{sub 0.8}As/GaAs lasers. United States: N. p., 2000. Web. doi:10.1070/QE2000V030N05ABEH001732.
Bogatov, Alexandr P, Drakin, A E, Stratonnikov, Aleksei A, & Konyaev, V P. Brightness and filamentation of a beam from powerful cw quantum-well In{sub 0.2}Ga{sub 0.8}As/GaAs lasers. United States. doi:10.1070/QE2000V030N05ABEH001732.
Bogatov, Alexandr P, Drakin, A E, Stratonnikov, Aleksei A, and Konyaev, V P. Wed . "Brightness and filamentation of a beam from powerful cw quantum-well In{sub 0.2}Ga{sub 0.8}As/GaAs lasers". United States. doi:10.1070/QE2000V030N05ABEH001732.
@article{osti_21454673,
title = {Brightness and filamentation of a beam from powerful cw quantum-well In{sub 0.2}Ga{sub 0.8}As/GaAs lasers},
author = {Bogatov, Alexandr P and Drakin, A E and Stratonnikov, Aleksei A and Konyaev, V P},
abstractNote = {Near- and far-field patterns are studied for powerful (above 2-W cw output) quantum-well heterojunction InGaAs/AlGaAs/GaAs lasers. The maximum radiation brightness was 1.7{center_dot}10{sup 7} W cm{sup -2} sr{sup -1}. It is shown that the radiation filamentation is already observed 10 - 20% above the lasing threshold. The filamentation period decreases from 50 to 10 {mu}m with increasing pumping current from almost the lasing threshold to an excess of 20% over the threshold. The filamentation results in the tenfold decrease in the radiation brightness of lasers compared to the theoretical value. (lasers)},
doi = {10.1070/QE2000V030N05ABEH001732},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 5,
volume = 30,
place = {United States},
year = {2000},
month = {5}
}