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Proceedings Paper

Analysis of phase-matching conditions for internal second-harmonic generation in InGaAs quantum well laser diodes
Author(s): M. Frunza; Emil Smeu; Niculae N. Puscas; Ion M. Popescu; Grigore I. Suruceanu
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Paper Abstract

In this paper we present an analysis of the phase-matching conditions for internal second-harmonic generation in InGaAs quantum-well laser diodes in order to enhance the conversion efficiency. We have characterized the role of phase- mismatching in the spectral distribution of the internal second-harmonic generation in the CW operation of these lasers. The emission of pairs of narrow blue-green peaks having perfectly symmetrical spectral positions with respect to the central peak of pure second-harmonic generation at approximately 480 nm is most probably enhanced by a mechanism of reciprocal cancellation of the respective phase-mismatch vectors. This study is important for the assessment of the relationship between the structural parameters of the laser and the conditions which contribute to the stimulation of second-order optical nonlinearities in the laser active region.

Paper Details

Date Published: 29 June 2001
PDF: 6 pages
Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); doi: 10.1117/12.432886
Show Author Affiliations
M. Frunza, Univ. Politehnica Bucharest (Romania)
Emil Smeu, Univ. Politehnica Bucharest (Romania)
Niculae N. Puscas, Univ. Politehnica Bucharest (Romania)
Ion M. Popescu, Univ. Politehnica Bucharest (Romania)
Grigore I. Suruceanu, Technical Univ. of Moldova (Switzerland)

Published in SPIE Proceedings Vol. 4430:
ROMOPTO 2000: Sixth Conference on Optics
Valentin I. Vlad, Editor(s)

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