CaF2 Whispering-Gallery-Mode Resonator Stabilized Narrow Linewidth Laser
Optics
2012-08-02 v1
Abstract
A fiber laser is stabilized using a Calcium Fluoride (CaF2) whispering-gallery-mode resonator. It is set up using a semiconductor optical amplifier as a gain medium. The resonator is critically coupled through prisms, and used as a filtering element to suppress the laser linewidth. Using the self-heterodyne beat technique the linewidth is determined to be 13 kHz. This implies an enhancement factor of 10^3 with respect to the passive cavity linewidth. The three-cornered hat method shows a stability of 10^(-11) after 10 \mu s.
Keywords
Cite
@article{arxiv.1208.0244,
title = {CaF2 Whispering-Gallery-Mode Resonator Stabilized Narrow Linewidth Laser},
author = {B. Sprenger and H. G. L. Schwefel and Z. H. Lu and S. Svitlov and L. J. Wang},
journal= {arXiv preprint arXiv:1208.0244},
year = {2012}
}
Comments
4 pages, 4 figures