Experimental determination of the relation between modal gain and current density for AlGaAs single quantum well lasers grown by metalorganic vapor phase epitaxy
- 13 June 1988
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 52 (24), 2015-2016
- https://doi.org/10.1063/1.99567
Abstract
The relation between modal gain and current density has been determined for a 20 Å single quantum well in a graded-index separate-confinement heterostructure laser. The measurements were performed at 153 K in order to avoid leakage of carriers out of the wells which might cause an apparent saturation of the gain. A sublinear dependence of gain on current density has been observed, agreeing rather well with theoretical calculations taking band mixing into account.Keywords
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