Coherent Frequency Combs produced by Self Frequency Modulation in Quantum Cascade Lasers
arXiv:1311.7431 · doi:10.1063/1.4866868
Abstract
One salient characteristic of Quantum Cascade Laser (QCL) is its very shor gain recovery time that so far thwarted the attempts to achieve self-mode locking of the device into a train of single pulses. We show theoretically that four wave mixing, combined with the short gain recovery time causes QCL to operate in the self-frequency-modulated regime characterized by a constant power in time domain and stable coherent comb in the frequency domain.Coherent frequency comb may enable many potential applications of QCL in sensing and measurement.
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Cited by in corpus (36)
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