New designs and recent experiments on intracavity nonlinear wave mixing in semiconductor lasers

We present theoretical and experimental results on intracavity nonlinear wave mixing in newly-designed two- and multi-wavelength heterolasers. The intracavity nonlinear mixing has been already demonstrated in our works using quantum cascade lasers as well as butt-joint lasers. These experiments clearly show prospects of the intracavity nonlinear mixing in semiconductor injection lasers. We focus on the most promising schemes of nonlinear-mixing lasers (NML), which may be used for the sum-, double- and difference-frequency generation in a wide infrared range. The NMLs can be implemented both in the interband lasers (diode-type lasers) and intersubband lasers (quantum cascade lasers).