Large-aperture active optical carbon fiber reinforced polymer mirror

Matthew E. L. Jungwirth; Christopher C. Wilcox; David V. Wick; Michael S. Baker; Clinton G. Hobart; Jared J. Milinazzo; Joseph Robichaud; Robert C. Romeo; Robert N. Martin; Jerome Ballesta; Emeric Lavergne; Eustace L. Dereniak

doi:10.1117/12.2020722

30 May 2013 Large-aperture active optical carbon fiber reinforced polymer mirror

Matthew E. L. Jungwirth, Christopher C. Wilcox, David V. Wick, Michael S. Baker, Clinton G. Hobart, Jared J. Milinazzo, Joseph Robichaud, Robert C. Romeo, Robert N. Martin, Jerome Ballesta, Emeric Lavergne, Eustace L. Dereniak

Author Affiliations +

Proceedings Volume 8725, Micro- and Nanotechnology Sensors, Systems, and Applications V; 87250W (2013) https://doi.org/10.1117/12.2020722
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

An active reflective component can change its focal length by physically deforming its reflecting surface. Such elements exist at small apertures, but have yet to be fully realized at larger apertures. This paper presents the design and initial results of a large-aperture active mirror constructed of a composite material called carbon fiber reinforced polymer (CFRP). The active CFRP mirror uses a novel actuation method to change radius of curvature, where actuators press against two annular rings placed on the mirror’s back. This method enables the radius of curvature to increase from 2000mm to 2010mm. Closed-loop control maintains good optical performance of 1.05 waves peak-to-valley (with respect to a HeNe laser) when the active CFRP mirror is used in conjunction with a commercial deformable mirror.

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Matthew E. L. Jungwirth, Christopher C. Wilcox, David V. Wick, Michael S. Baker, Clinton G. Hobart, Jared J. Milinazzo, Joseph Robichaud, Robert C. Romeo, Robert N. Martin, Jerome Ballesta, Emeric Lavergne, and Eustace L. Dereniak "Large-aperture active optical carbon fiber reinforced polymer mirror", Proc. SPIE 8725, Micro- and Nanotechnology Sensors, Systems, and Applications V, 87250W (30 May 2013); https://doi.org/10.1117/12.2020722

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