1 November 2010 Nonlinear coupling of transverse modes in quantum cascade lasers
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Abstract
We study the multimode operation regimes of midinfrared quantum cascade lasers (QCLs), taking into account nonlinear phase-sensitive interactions between transverse modes. We show the possibility of the coherent coupling of several transverse modes, which results in a number of interesting effects including frequency and phase locking between transverse modes, bistability, and beam steering. We present an analytical model for the modal dynamics and its numerical analysis. Effects of amplitude and phase fluctuations on the modal stability are explored. The theoretical results are in agreement with our experimental measurements of buried heterostructure QCLs.
© (2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Aleksander K. Wojcik, Aleksander K. Wojcik, Nanfang Yu, Nanfang Yu, Laurent Diehl, Laurent Diehl, Federico Capasso, Federico Capasso, Alexey A. Belyanin, Alexey A. Belyanin, } "Nonlinear coupling of transverse modes in quantum cascade lasers," Optical Engineering 49(11), 111114 (1 November 2010). https://doi.org/10.1117/1.3498773 . Submission:
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