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High dynamic range thermally actuated bimorph mirror for gravitational wave detectors

Cao, Huy Tuong and Brooks, Aidan and Ng, Sebastian W. S. and Ottaway, David and Perreca, Antonio and Richardson, Jonathan W. and Chaderjian, Aria and Veitch, Peter J. (2020) High dynamic range thermally actuated bimorph mirror for gravitational wave detectors. Applied Optics, 59 (9). pp. 2784-2790. ISSN 1559-128X. doi:10.1364/ao.376764.

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Adaptive optics are crucial for overcoming the fabrication limits on mirror curvature in high-precision interferometry. We describe a low-cost thermally actuated bimorph mirror with 200 mD linear response, which meets dynamic range and low aberration requirements for the A+ upgrade of the Laser Interferometer Gravitational-wave Observatory (LIGO). Its deformation and operation limits were measured and verified against finite element simulation.

Item Type:Article
Related URLs:
URLURL TypeDescription
Cao, Huy Tuong0000-0001-6583-6907
Brooks, Aidan0000-0003-4295-792X
Ottaway, David0000-0001-6794-1591
Richardson, Jonathan W.0000-0002-1472-4806
Additional Information:© 2020 Optical Society of America. Received 29 October 2019; revised 30 January 2020; accepted 3 February 2020; posted 6 February 2020 (Doc. ID 376764); published 18 March 2020. This research was conducted jointly with the support of the Australian Research Council Centre of Excellence for Gravitational Wave Discovery and the National Science Foundation under the LIGO cooperative agreement. Funding: Australian Research Council (CE170100004); National Science Foundation (PHY-0757058). The authors declare no conflicts of interest.
Funding AgencyGrant Number
Australian Research CouncilCE170100004
Issue or Number:9
Record Number:CaltechAUTHORS:20200430-133835100
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Official Citation:Huy Tuong Cao, Aidan Brooks, Sebastian W. S. Ng, David Ottaway, Antonio Perreca, Jonathan W. Richardson, Aria Chaderjian, and Peter J. Veitch, "High dynamic range thermally actuated bimorph mirror for gravitational wave detectors," Appl. Opt. 59, 2784-2790 (2020)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102935
Deposited By: Tony Diaz
Deposited On:30 Apr 2020 21:04
Last Modified:16 Nov 2021 18:16

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