Reduction in the rate of increase of spontaneous emission from double-heterostructure injection lasers at threshold
- 1 August 1972
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 21 (3), 101-102
- https://doi.org/10.1063/1.1654287
Abstract
An abrupt reduction in the rate of growth of the spontaneous emission has been observed to occur at the lasing threshold of stripe‐geometry double‐heterostructure injection lasers. The observations are contrary to a previously published result of Sommers and imply that increases in the quasi‐Fermi level separation with current are significantly reduced at the lasing threshold in agreement with present theoretical predictions.Keywords
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