Nonlinear-optical frequency conversion in a dual-wavelength vertical-external-cavity surface-emitting laser

被引:0
作者
Yu. A. Morozov
I. S. Nefedov
T. Leinonen
M. Yu. Morozov
机构
[1] Russian Academy of Sciences,Institute of Radio Engineering and Electronics, Saratov Branch
[2] Tampere University of Technology,Optoelectronics Research Centre
[3] Saratov State University,undefined
来源
Semiconductors | 2008年 / 42卷
关键词
42.55.Px; 85.35.Be; 78.45.+h; 78.67.De;
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摘要
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 (∼17.7 μm) 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.
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