26 February 2003 SIM internal metrology beam launcher development
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To accomplish micro-arcsecond astrometric measurement, stellar interferometers such as SIM require the measurement of internal optical path length delay with an accuracy of ~10 picometers level. A novel common-path laser heterodyne interferometer suitable for this application was proposed and demonstrated at JPL. In this paper, we present some of the experimental results from a laboratory demonstration unit and design considerations for SIM's internal metrology beam launcher.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Feng Zhao, Feng Zhao, Rosemary Diaz, Rosemary Diaz, Gary M. Kuan, Gary M. Kuan, Norbert Sigrist, Norbert Sigrist, Yuri Beregovski, Yuri Beregovski, Lawrence L. Ames, Lawrence L. Ames, Kalyan Dutta, Kalyan Dutta, } "SIM internal metrology beam launcher development", Proc. SPIE 4852, Interferometry in Space, (26 February 2003); doi: 10.1117/12.460940; https://doi.org/10.1117/12.460940

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