Optical gain spectra of (Galn)(NAs)/GaAs quantum-well lasers operating in the 1.3-μm-emission-wavelength regime are measured and compared to those of a commercial (Galn)(AsP)/InP structure. Good agreement of the experimental results with computed spectra of a microscopic many-body theory is obtained. Due to the contributions of a second confined subband, a spectrally broad gain region is expected for (Galn)(NAs)/GaAs at elevated carrier densities.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)