Length control of an optical resonator using second-order transverse modes
Optics
2014-11-03 v1
Abstract
We present the analysis of an unorthodox technique for locking a laser to a resonant optical cavity. Error signals are derived from the interference between the fundamental cavity mode and higher-order spatial modes of order two excited by mode mismatch. This scheme is simple, inexpensive and, in contrast to similar techniques, first-order-insensitive to beam jitter. After mitigating sources of technical noise, performance is fundamentally limited by quantum shot-noise.
Cite
@article{arxiv.1410.8773,
title = {Length control of an optical resonator using second-order transverse modes},
author = {John Miller and Matthew Evans},
journal= {arXiv preprint arXiv:1410.8773},
year = {2014}
}