Intracavity nearly degenerate four-wave mixing in a (GaAl)As semiconductor laser
- 15 October 1985
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 47 (8), 769-771
- https://doi.org/10.1063/1.96424
Abstract
Intracavity nearly degenerate four-wave mixing has been demonstrated by injecting a low intensity probe beam of frequency ω−δω inside a (GaAl)As semiconductor laser operating above threshold at the pump frequency ω. Conjugated reflectivities as high as 5000 together with a 25% energy conversion efficiency are reported with only a few milliwatt pump power. Additional peaks related to the ac stark effect have been observed at a detuning which depended on the pump power. This process could be useful for the study of instabilities occurring in lasers as well as for optical amplification in laser diodes.Keywords
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