I use a matrix approach to determine the optical-axis perturbation sensitivity of an out-of-plane stable ring resonator. It is found to have a singularity for certain design parameters. On one side of the singularity the cavity behaves abnormally: the longer the mirror radius, the larger the mode volume and, surprisingly, the less the perturbation sensitivity. This is opposite the behavior of conventional stable resonators, a finding that is important to the cavity designs of out-of-plane ring lasers.
© 1994 Optical Society of America
Original Manuscript: November 1, 1993
Published: May 15, 1994
Shinan-Chur Sheng, "Optical-axis perturbation singularity in an out-of-plane ring resonator," Opt. Lett. 19, 683-685 (1994)