Abstract
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 ${\rm{A}} + $ upgrade of the Laser Interferometer Gravitational-wave Observatory (LIGO). Its deformation and operation limits were measured and verified against finite element simulation.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
Huy Tuong Cao, Sebastian W. S. Ng, Minkyun Noh, Aidan Brooks, Fabrice Matichard, and Peter J. Veitch
Opt. Express 28(26) 38480-38490 (2020)
Varun Srivastava, Georgia Mansell, Camille Makarem, Minkyun Noh, Richard Abbott, Stefan Ballmer, GariLynn Billingsley, Aidan Brooks, Huy Tuong Cao, Peter Fritschel, Don Griffith, Wenxuan Jia, Marie Kasprzack, Myron MacInnis, Sebastian Ng, Luis Sanchez, Calum Torrie, Peter Veitch, and Fabrice Matichard
Opt. Express 30(7) 10491-10501 (2022)
Sven Verpoort and Ulrich Wittrock
Appl. Opt. 49(31) G37-G46 (2010)