We demonstrate ultrafast self- and cross-absorption saturation and self-phase modulation based on near-infrared intersubband transitions in GaN/AlN quantum-well waveguides designed to minimize the nonlinear switching energy.
© 2008 Optical Society of America
(190.0190) Nonlinear optics : Nonlinear optics
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
(230.0230) Optical devices : Optical devices
(230.7370) Optical devices : Waveguides
Y. Li, A. Bhattacharyya, C. Thomidis, T. D. Moustakas, and R. Paiella, "Intersubband Nonlinear Optical Processes in GaN/AlN Quantum-Well Waveguides," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper CTuH3.
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