ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Facet temperature and output power of coated AlGaAs single-quantum-well lasers were examined as a function of operating time. In contrast to previous results on uncoated lasers, which show a linear rise of facet temperature with time, these measurements on coated lasers show an initial rapid rise and then a substantial slowing of the temperature rise rate. Qualitatively similar behavior is observed in both the temperature rise and power degradation rates. Facet temperature measurements as a function of drive current at time zero show no observable discontinuity at threshold; however, formation of a kink at threshold is observed soon after stressing the lasers at constant current, suggesting a large role of photon heating in the facet degradation process.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.355699
