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Proceedings Paper

Quantum-well-laser mirror degradation investigated by microprobe optical spectroscopy
Author(s): C. Corvasce; Vincenzo Spagnolo; Gaetano Scamarcio; M. Lugara; F. Adduci; Michele Ferrara; Michele Sibilano; Sergio Pellegrino; Massimo del Giudice; M. G. Re
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Paper Abstract

A study of facet degradation of InGaAs quantum well lasers is reported. We tune up a Raman and photoluminescence micro-probe technique for determining the crystal structure and the temperature profile of the cladding layer, in steps of approximately 1 micrometer, with a temperature resolution better than 1 degree Kelvin. The cladding layer composition and cross- section temperature profile have been monitored during operation. A clear correlation between the facet degradation and the type of protective coating is found.

Paper Details

Date Published: 3 November 1995
PDF: 5 pages
Proc. SPIE 2648, International Conference on Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics, (3 November 1995); doi: 10.1117/12.226195
Show Author Affiliations
C. Corvasce, Univ. di Bari (Italy)
Vincenzo Spagnolo, Univ. di Bari (Italy)
Gaetano Scamarcio, Univ. di Bari (Italy)
M. Lugara, Univ. di Bari (Italy)
F. Adduci, Univ. di Bari (Italy)
Michele Ferrara, Univ. di Bari (Italy)
Michele Sibilano, Univ. di Bari (Italy)
Sergio Pellegrino, Alcatel-Telettra Research Ctr. (Italy)
Massimo del Giudice, Alcatel-Telettra Research Ctr. (Italy)
M. G. Re, Alcatel-Telettra Research Ctr. (Italy)


Published in SPIE Proceedings Vol. 2648:
International Conference on Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics
Sergey V. Svechnikov; Mikhail Ya. Valakh, Editor(s)

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