23 August 2017 Cryogenic, infrared, optical beamsplitter wavefront error analysis and test
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Abstract
Mounting large reflective-refractive optical elements for cryogenic space application requires careful engineering. Optical wavefront error performance is balanced with surviving launch environments and cryogenic temperatures. Mounting and ground testing of a 25 cm by 15 cm plano germanium optical beamsplitter element was completed. Cryogenic WFE testing was performed down to 115 K predicting compliance to operational environment performance requirements. This paper discusses the mount engineering including detailed analysis, testing, and results.
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T. Newswander, T. Newswander, Tyrel Rupp, Tyrel Rupp, } "Cryogenic, infrared, optical beamsplitter wavefront error analysis and test", Proc. SPIE 10371, Optomechanical Engineering 2017, 103710M (23 August 2017); doi: 10.1117/12.2273078; https://doi.org/10.1117/12.2273078
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