Frequency Comb Generation by Bloch Gain Induced Giant Kerr Nonlinearity

نویسندگان

چکیده

Optical nonlinearities are known to coherently couple amplitude and phase of light, which can result in the formation periodic waveforms. Such waveforms referred as optical frequency combs. Here we show that Bloch gain---a nonclassical phenomenon was first predicted 1930s---can play an essential role comb formation. We develop a self-consistent theoretical model considers all aspects dynamics: band structure, electron transport, cavity dynamics. In quantum cascade lasers, gain gives rise giant Kerr nonlinearity, enables modulated combs serves physical origin linewidth enhancement factor. also triggers solitonlike structures ring resonators, paving way toward electrically driven

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ژورنال

عنوان ژورنال: Physical Review Letters

سال: 2021

ISSN: ['1079-7114', '0031-9007', '1092-0145']

DOI: https://doi.org/10.1103/physrevlett.127.093902