Optoelectronic nibbling of laser linewidth using a Brillouin-assisted optical phase-locked loop
Optics
2018-08-27 v1 Instrumentation and Detectors
Abstract
We demonstrate that the implementation of phase-locked loop forbidding multimode operation of a long Brillouin resonator also leads to a dramatic reduction of the optical phase noise of the pump itself. In the case of a continuous Er,Yb:glass laser, a reduction by more than 90 dB at 100 Hz of the carrier is observed. This yields an optical linewidth estimated narrower than 2 Hz for the pump laser. The method being independent of the laser wavelength, it can be applied to almost any laser.
Keywords
Cite
@article{arxiv.1808.08169,
title = {Optoelectronic nibbling of laser linewidth using a Brillouin-assisted optical phase-locked loop},
author = {Gwennael Danion and Marc Vallet and Ludovic Frein and Pascal Szriftgiser and Mehdi Alouini},
journal= {arXiv preprint arXiv:1808.08169},
year = {2018}
}
Comments
4 pages, 5 figures