Nonlinear modification of the laser noise power spectrum induced by a frequency-shifted optical feedback
Abstract
In this article, we study the non-linear coupling between the stationary (i.e. the beating modulation signal) and transient (i.e. the laser quantum noise) dynamics of a laser subjected to frequency shifted optical feedback. We show how the noise power spectrum and more specifically the relaxation oscillation frequency of the laser are modified under different optical feedback condition. Specifically we study the influence of (i) the amount of light returning to the laser cavity and (ii) the initial detuning between the frequency shift and intrinsic relaxation frequency. The present work shows how the relaxation frequency is related to the strength of the beating signal and the shape of the noise power spectrum gives an image of the Transfer Modulation Function (i.e. of the amplification gain) of the nonlinear-laser dynamics.The theoretical predictions, confirmed by numerical resolutions, are in good agreements with the experimental data.
Keywords
Cite
@article{arxiv.1609.09768,
title = {Nonlinear modification of the laser noise power spectrum induced by a frequency-shifted optical feedback},
author = {Eric Lacot and Bahram Houchmandzadeh and Vadim Girardeau and Olivier Hugon and Olivier Jacquin},
journal= {arXiv preprint arXiv:1609.09768},
year = {2016}
}
Comments
in Physical Review, American Physical Society (APS), 2016