Birefringent atomic vapor laser lock in a hollow cathode lamp
Atomic Physics
2021-12-14 v1
Abstract
We report a robust method of stabilizing a laser to the frequency of an atomic transition using a hollow cathode lamp. In contrast to the standard dichroic atomic vapor laser lock (DAVLL) method, which uses dichroism induced by a longitudinal magnetic field, we employ birefringence induced by a transversal magnetic field. We applied this method to the transition (461 nm) of Sr. Although the hollow cathode is made of ferromagnetic material, we successfully applied a magnetic field of sufficient strength to obtain an error signal with a theoretical maximum slope. This method may be applied to other hollow cathode lamps of different atomic species.
Keywords
Cite
@article{arxiv.2111.06076,
title = {Birefringent atomic vapor laser lock in a hollow cathode lamp},
author = {Takumi Sato and Yusuke Hayakawa and Naohiro Okamoto and Yusuke Shimomura and Takatoshi Aoki and Yoshio Torii},
journal= {arXiv preprint arXiv:2111.06076},
year = {2021}
}