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arXiv · 1909.09450

Amplified noise nonstationarity in a mode-locked laser based on nonlinear polarization rotation

Carlos Andres Perilla Rozo·Philippe Guay·Jean-Daniel Deschênes·Jérôme Genest
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Abstract

Beat note measurements between a mode-locked and a continuous-wave laser as well as between two mode-locked sources were used to demonstrate that the sub-threshold, cavity filtered, amplified spontaneous emission is not stationary even when a fast mode-locking mechanism, such as nonlinear polarization rotation, is used to generate short pulses. A relatively small gain modulation of a few percents created by high intensity pulses can produce a significant modulation of the amplified noise once synchronously accumulated over several cavity round-trips, even if the repetition rate is faster than the gain dynamics.

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Carlos Andres Perilla Rozo, Philippe Guay, Jean-Daniel Deschênes, Jérôme Genest. 2019-09-20. Amplified noise nonstationarity in a mode-locked laser based on nonlinear polarization rotation. https://doi.org/10.1364/ol.44.005137

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