Evidence for state filling effect on high speed modulation dynamics of quantum well lasers
- 19 October 1992
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 61 (16), 1907-1909
- https://doi.org/10.1063/1.108359
Abstract
By using different separate confinement structures for otherwise identical quantum well lasers, we find experimentally that the differential gain can vary over a factor of three, which significantly affects the high speed modulation bandwidth in such lasers. These observations are in agreement with the predictions of a theory of modulation dynamics which accounts for the carrier population in the optical confining region of the separate confinement structure (state filling effect) in quantum well lasers.Keywords
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