Origin of nonlinear gain saturation in index-guided InGaAsP laser diodes
- 1 June 1992
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 60 (22) , 2720-2722
- https://doi.org/10.1063/1.106855
Abstract
The spectrum of nonlinear gain saturation of InGaAsP diode lasers with a buried heterostructure is measured by means of modulation spectroscopy. The underlying physical processes are identified through comparison with theoretical spectra. At the laser line, contributions to the coefficient of self-saturation by spectral hole burning (1.6×10−17 cm3) and carrier heating (1.1×10−17 cm3) of comparable magnitude are found.Keywords
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