Novel wide-field-of-view laser retroreflector for the Space Interferometry Mission

Edouard G. Schmidtlin; Stuart B. Shaklan; Andrew E. Carlson

doi:10.1117/12.317182

24 July 1998 Novel wide-field-of-view laser retroreflector for the Space Interferometry Mission

Edouard G. Schmidtlin, Stuart B. Shaklan, Andrew E. Carlson

Proceedings Volume 3350, Astronomical Interferometry; (1998) https://doi.org/10.1117/12.317182
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

Abstract

A new type of laser retroreflector has been developed for JPL's future Space Interferometry Mission. The retroreflector consists of an assembly of prisms of form multiple hollow cornercubes. This allows the limited field of view of about 60 degrees of a single corner can be overcome, to comply with the geometry of an optical truss. In addition, an innovative feature is that the retroreflector has common vertices, in order to define a single point optical fiducial necessary for point-to-point 3D laser metrology. The multiple cornercube provides better thermal stability and optical performance than spherical and hemispherical type retroreflectors. In manufacturing the prototype, the key technology of assembling prisms to the interferometric accuracy has been demonstrated. A non common vertex error of a few micrometers has been achieved.

Citation Download Citation

Edouard G. Schmidtlin, Stuart B. Shaklan, and Andrew E. Carlson "Novel wide-field-of-view laser retroreflector for the Space Interferometry Mission", Proc. SPIE 3350, Astronomical Interferometry, (24 July 1998); https://doi.org/10.1117/12.317182

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