Optically pumped GaAs lasers with acoustic distributed feedback
- 1 August 1978
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 33 (3), 251-253
- https://doi.org/10.1063/1.90316
Abstract
Experiments on a two‐dimensional acoustic distributed feedback (ADFB) laser are described. A set of distributed Bragg reflectors (DBR’s) were formed on a GaAs crystal which was optically pumped at liquid‐nitrogen temperature and an surface acoustic wave (SAW) at a frequency around 1.2 GHz was injected into the planar region between the DBR’s. We observed the oscillation of the two‐dimensional ADFB modes. The SAW power, needed for the onset of the oscillation of the modes, was about 5 mW under the present experimental condition. Some discussions on its applications are briefly described.Keywords
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