Precision metrology of dihedral angle error in prisms and corner cubes for the Space Interferometry Mission

Jan Burke; Bozenko F. Oreb; Benjamin C. Platt; Bijan Nemati

doi:10.1117/12.613591

18 August 2005 Precision metrology of dihedral angle error in prisms and corner cubes for the Space Interferometry Mission

Jan Burke, Bozenko F. Oreb, Benjamin C. Platt, Bijan Nemati

Author Affiliations +

Proceedings Volume 5869, Optical Manufacturing and Testing VI; 58690W (2005) https://doi.org/10.1117/12.613591
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Recent work done at CSIRO's Australian Centre for Precision Optics has pushed the fabrication limits on optical retroreflectors. To achieve dihedral angle errors well below an arcsecond, the measurement accuracy was required to be 0.1 arcsec or better. On this level, the error introduced by the interferometer's instrument function is not negligible. So-called "collimation errors", or more generally, wavefront aberrations, can significantly falsify the angle measurements. This paper describes and demonstrates the basic concepts for interferometric measurement of dihedral angle errors in retroreflectors from a practical point of view. We discuss obvious and subtle stumbling blocks, summarize practical experiences, and show some results of the recent joint work between JPL and CSIRO.

Citation Download Citation

Jan Burke, Bozenko F. Oreb, Benjamin C. Platt, and Bijan Nemati "Precision metrology of dihedral angle error in prisms and corner cubes for the Space Interferometry Mission", Proc. SPIE 5869, Optical Manufacturing and Testing VI, 58690W (18 August 2005); https://doi.org/10.1117/12.613591

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