Phase-locked semiconductor laser array
- 15 December 1978
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 33 (12), 1015-1017
- https://doi.org/10.1063/1.90253
Abstract
Five optically coupled narrow stripe (3.5 μm) GaAs/GaAlAs semiconductor lasers on 8‐μm centers are operated as a spatially coherent phase‐locked laser array. Output beams with less than 2° divergence are observed up to 60 mW/facet output with a quantum efficiency of greater than 25%/facet. Significant nonlinearities do not appear until well over 100 mW/facet output.Keywords
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