Semiconductor physics

Nonlinear difference-frequency generation in the mid-infrared spectral range in waveguides with a modulated permittivity profile

K. B. Mikitchuk, A. A. Afonenko

Belarusian State University, Minsk

Abstract: A method for implementing quasi-phase matching for nonlinear difference-frequency generation in planar waveguides with a modulated permittivity profile is analyzed. For a pump wave power equal to 10 W, the difference-frequency wave power in the 11–24 $\mu$m wavelength range can be as high as 0.6 $\mu$W for edge output and 0.12 mW/mm$^2$ for vertical output.

Received: 11.05.2011
Accepted: 15.06.2011

 English version: Semiconductors, 2012, 46:1, 117–120

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