Simple piezoelectric-actuated mirror with 180 kHz servo bandwidth
Optics
2015-05-18 v1
Abstract
We present a high bandwidth piezoelectric-actuated mirror for length stabilization of an optical cavity. The actuator displays a transfer function with a flat amplitude response and greater than 135 phase margin up to 200 kHz, allowing a 180 kHz unity gain frequency to be achieved in a closed servo loop. To the best of our knowledge, this actuator has achieved the largest servo bandwidth for a piezoelectric transducer (PZT). The actuator should be very useful in a wide variety of applications requiring precision control of optical lengths, including laser frequency stabilization, optical interferometers, and optical communications.
Keywords
Cite
@article{arxiv.1003.5962,
title = {Simple piezoelectric-actuated mirror with 180 kHz servo bandwidth},
author = {Travis C Briles and Dylan C. Yost and Arman Cingoz and Thomas Schibli and Jun Ye},
journal= {arXiv preprint arXiv:1003.5962},
year = {2015}
}