Nonlinear-optical frequency conversion in a dual-wavelength vertical-external-cavity surface-emitting laser
- Russian Academy of Sciences, Institute of Radio Engineering and Electronics, Saratov Branch (Russian Federation)
- Saratov State University (Russian Federation)
A nonlinear-optical conversion process in a dual-wavelength vertical-external-cavity surface-emitting laser that leads to the generation of difference-frequency radiation in the long-wavelength part of the mid-infrared range ({approx}17.7 {mu}m) is analyzed numerically. The nonlinear crystal of GaAs is incorporated in the output-coupler mirror and, at the same time, is placed in a Fabry-Perot cavity tuned to the difference frequency. It is shown that the dependence of the nonlinear-conversion efficiency on the GaAs crystal thickness exhibits a pronounced resonance behavior and that the peak power of the radiation in the mid-infrared range can be as high as a few milliwatts with the parameters of the laser and the optical pump readily attainable experimentally.
- OSTI ID:
- 21087888
- Journal Information:
- Semiconductors, Journal Name: Semiconductors Journal Issue: 4 Vol. 42; ISSN SMICES; ISSN 1063-7826
- Country of Publication:
- United States
- Language:
- English
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