Grating-coupled GaAs single heterostructure ring laser
- 1 June 1976
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 28 (11) , 681-683
- https://doi.org/10.1063/1.88621
Abstract
We report pulsed operation of an electrically pumped GaAs single heterostructure ring laser at 77 °K. Guided modes within the laser are totally internally reflected at cleaved facets and output beams are obtained by coupling from an integrated grating. Thresholds as low as 700 A/cm2 have been obtained and highly polarized highly collimated beams (1°×7° divergence) with a total output power of 70 mW have been observed.Keywords
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