Comparison of experimental and theoretical gain-current relations in GaInP quantum well lasers

Journal Article · Sun Mar 19 23:00:00 EST 2000 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.126083· OSTI ID:20215687

Smowton, P M ^[1]; Blood, P ^[1]; Chow, W W ^[2]

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1. Department of Physics and Astronomy, Cardiff University, P.O. Box 913, Cardiff, Wales, CF2 3YB, (United Kingdom)
2. Sandia National Laboratories, Albuquerque, New Mexico 87185-0601 (United States)

We compare the results of a microscopic laser theory with gain and recombination currents obtained from experimental spontaneous emission spectra. The calculated absorption spectrum is first matched to that measured on a laser, ensuring that the quasi-Fermi levels for the calculation and the experiment (spontaneous emission and gain) are directly related. This allows us to determine the inhomogeneous broadening in our experimental samples. The only other inputs to the theory are literature values of the bulk material parameters. We then estimate the nonradiative recombination current associated with the well and waveguide core from a comparison of measured and calculated recombination currents. (c) 2000 American Institute of Physics.

• OSTI ID: 20215687
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 12 Vol. 76; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ABSORPTION SPECTRA
EXPERIMENTAL DATA
GAIN
GALLIUM PHOSPHIDES
INDIUM PHOSPHIDES
RECOMBINATION
SEMICONDUCTOR LASERS
THEORETICAL DATA