Phase diagram for injection locking a superradiant laser
Abstract
We experimentally and theoretically study the response of a superradiant or bad-cavity laser to an applied coherent drive. We observe two forms of synchronization (injection locking) between the superradiant ensemble and the applied drive: one attractive and one repulsive in nature. We explain the region of repulsion as arising from the higher three-dimensional description of the atomic spin state that stores the laser coherence in a superradiant laser, as opposed to a two-parameter description of the electric field in a traditional good-cavity laser. We derive a phase diagram of predicted behavior and experimentally measure the response of the system across various trajectories therein.
Cite
@article{arxiv.1406.5238,
title = {Phase diagram for injection locking a superradiant laser},
author = {Kevin C. Cox and Joshua M. Weiner and James K. Thompson},
journal= {arXiv preprint arXiv:1406.5238},
year = {2015}
}
Comments
Letter (4 pages, 4 figures) followed by Supplemental Material (6 pages, 2 figures)