17 October 2014 Post-flight test results of acousto-optic modulator devices subjected to space exposure
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The objective of the Materials International Space Station Experiment (MISSE) is to study the performance of novel materials when subjected to the synergistic effects of the harsh space environment for several months. MISSE missions provide an opportunity for developing space qualifiable materials. Several laser and lidar components were sent by NASA Langley Research Center (LaRC) as a part of the MISSE 7 mission. The MISSE 7 module was transported to the international space station (ISS) via STS 129 mission that was launched on Nov 16, 2009. Later, the MISSE 7 modulewas brought back to the earth via the STS 134 that landed on June 1, 2011. The MISSE 7 module that was subjected to exposure in space environment for more than one and a half year included fiber laser, solid-state laser gain materials, detectors, and semiconductor laser diode. Performance testing of these components is now progressing. In this paper, the results of performance testing of a laser diode module sent by NASA Langley Research Center on MISSE 7 mission will be discussed. This paper will present the comparison of pre-flight and post-flight performance of two different COTS acousto-optic modulator devices. Post-flight measurements indicate that these two devices did not undergo any significant performance degradation.
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Narasimha S. Prasad, Narasimha S. Prasad, Sudhir Trivedi, Sudhir Trivedi, Jolanta Rosemeier, Jolanta Rosemeier, Mark Diestler, Mark Diestler, "Post-flight test results of acousto-optic modulator devices subjected to space exposure", Proc. SPIE 9226, Nanophotonics and Macrophotonics for Space Environments VIII, 922609 (17 October 2014); doi: 10.1117/12.2063853; https://doi.org/10.1117/12.2063853


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