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.
Quantum-well-laser mirror degradation investigated by microprobe optical spectroscopy / Corvasce, C., Spagnolo, V.L., Scamarcio, G., Lugara, M., Adduci, F., Ferrara, M., Sibilano, M., Pellegrino, S., del Giudice, M., Re, M.G.. - STAMPA. - 2648:(1995), pp. 360-364. (International Conference on Optical Diagnostics of Materials and Devices for Optoelectronics, Microelectronics and Quantum Electronics Kiev, Ukraine May 11-13, 1995) [10.1117/12.226195].
Quantum-well-laser mirror degradation investigated by microprobe optical spectroscopy
Vincenzo Spagnolo;
1995
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
