Evidence for current-density-induced heating of AlGaAs single-quantum-well laser facets
- 26 August 1991
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 59 (9) , 1005-1007
- https://doi.org/10.1063/1.106326
Abstract
The facet temperature of AlGaAs ridge waveguided single-quantum-well lasers with various ridge widths and cavity lengths were measured as a function of output power and injection current using Raman microprobe spectroscopy. The facet temperature was found to scale with the injection current density rather than the photon flux. In addition, no large discontinuities were found below and above the lasing threshold, suggesting that the absorption of the emitted photons plays only a minor role in the facet heating. These data imply that the facet heating during the initial slow degradation regime is due to the surface nonradiative recombination of carriers and is primarily determined by the injection current density. This could be contrasted to the catastrophic optical damage regime where the lasing photons play a key role in the heating process.Keywords
This publication has 12 references indexed in Scilit:
- Raman microprobe study of the time development of AlGaAs single quantum well laser facet temperature on route to catastrophic breakdownApplied Physics Letters, 1991
- Probe beam heating of AlGaAs single-quantum-well laser facets in Raman microprobe spectroscopyJournal of Applied Physics, 1990
- Degradation and lifetime studies of high-power single-quantum-well AlGaAs ridge lasersJournal of Applied Physics, 1990
- Mapping of local temperatures on mirrors of GaAs/AlGaAs laser diodesApplied Physics Letters, 1990
- Thermodynamics approach to catastrophic optical mirror damage of AlGaAs single quantum well lasersApplied Physics Letters, 1989
- Degradation of III–V Opto‐Electronic DevicesJournal of the Electrochemical Society, 1988
- High-power ridge-waveguide AlGaAs GRIN-SCH laser diodeElectronics Letters, 1986
- Temperature distribution along the striped active region in high-power GaAlAs visible lasersJournal of Applied Physics, 1985
- Mirror degradation in AlGaAs double-heterostructure lasersJournal of Applied Physics, 1979
- Catastrophic damage of AlxGa1−xAs double-heterostructure laser materialJournal of Applied Physics, 1979