We described the enhancement of second-harmonic generation in mid-infrared quantum cascade lasers by supersymmetric quantum mechanics with band nonparabolicity incorporated. Simulation results demonstrate a much higher gain and linear-to-nonlinear conversion efficiency in the optimized structure.
© 2006 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.7090) Lasers and laser optics : Ultrafast lasers
(190.0190) Nonlinear optics : Nonlinear optics
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
J. Bai and D. S. Citrin, "Enhancement of Second-Harmonic Generation in Mid-Infrared Quantum Cascade Lasers," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper JWB15.
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