Published November 3, 1995
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Quantum-well-laser mirror degradation investigated by microprobe optical spectroscopy
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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.
Additional Information
© 1995 Society of Photo-Optical Instrumentation Engineers (SPIE). This work has been partially supported by Italian CNR (Research National Council).Attached Files
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Additional details
- Eprint ID
- 87140
- Resolver ID
- CaltechAUTHORS:20180614-161010885
- Consiglio Nazionale delle Ricerche (CNR)
- Created
-
2018-06-15Created from EPrint's datestamp field
- Updated
-
2021-11-15Created from EPrint's last_modified field
- Caltech groups
- GALCIT
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 2648