Robert W. Keyes
Physical Review B
Unamplified spontaneously emitted light was measured through openings in the top contact of GaInP strained quantum-well ridge lasers. The data was recorded over a spectral range from 1.65 to 2.25 eV for different injection currents below threshold. Hakki-Paoli gain measurements of the same devices were used to determine the quasi-Fermi level separation and the scaling constant needed to calculate the modal gain from spontaneous emission spectra. The refractive index change due to current injection and the linewidth enhancement factor were derived from this data. Copyright 1995 IEEE
Robert W. Keyes
Physical Review B
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
A. Gupta, R. Gross, et al.
SPIE Advances in Semiconductors and Superconductors 1990