Simple and robust phase-locking of optical cavities with > 200 KHz servo-bandwidth using a piezo-actuated mirror mounted in soft materials

David Goldovsky; Valery Jouravsky; Avi Pe'er

doi:10.1364/OE.24.028239

Simple and robust phase-locking of optical cavities with > 200 KHz servo-bandwidth using a piezo-actuated mirror mounted in soft materials

David Goldovsky, Valery Jouravsky, Avi Pe'er

Department of Physics

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We present an approach to locking of optical cavities with piezoelectric actuated mirrors based on a simple and effective mechanical decoupling of the mirror and actuator from the surrounding mount. Using simple elastic materials (e.g. rubber or soft silicone gel pads) as mechanical dampers between the piezo-mirror compound and the surrounding mount, a firm and stable mounting of a relatively large mirror (8mm diameter) can be maintained that is isolated from external mechanical resonances, and is limited only by the internal piezo-mirror resonance of > 330 KHz. Our piezo lock showed positive servo gain up to 208 KHz, and a temporal response to a step interference within < 3 μs.

Original language	English
Pages (from-to)	28239-28246
Number of pages	8
Journal	Optics Express
Volume	24
Issue number	25
DOIs	https://doi.org/10.1364/OE.24.028239
State	Published - 12 Dec 2016

Bibliographical note

Publisher Copyright:
© 2016 Optical Society of America.

Funding

Israel Science Foundation (Grant #46/14).

Funders	Funder number
Israel Science Foundation	46/14

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10.1364/OE.24.028239

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Simple and robust phase-locking of optical cavities with > 200 KHz servo-bandwidth using a piezo-actuated mirror mounted in soft materials

Abstract

Bibliographical note

Funding

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