Amplified noise nonstationarity in a mode-locked laser based on nonlinear polarization rotation
Optics
2020-01-08 v1
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.
Keywords
Cite
@article{arxiv.1909.09450,
title = {Amplified noise nonstationarity in a mode-locked laser based on nonlinear polarization rotation},
author = {Carlos Andres Perilla Rozo and Philippe Guay and Jean-Daniel Deschênes and Jérôme Genest},
journal= {arXiv preprint arXiv:1909.09450},
year = {2020}
}