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Proceedings Paper

Estimation of cyclic error due to scattering in the internal OPD metrology of the Space Interferometry Mission
Author(s): Hong Tang; Feng Zhao
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Paper Abstract

A common-path laser heterodyne interferometer capable of measuring the internal OPD with accuracy of the order of 10 pm was demonstrated at JPL. To achieve this accuracy, the relative power received by the detector that is contributed by the scattering of light at the optical surfaces should be less than -97 dB. A method has been developed to estimate the cyclic error caused by the scattering of the optical surfaces. The result of the analysis is presented.

Paper Details

Date Published: 14 February 2005
PDF: 8 pages
Proc. SPIE 5776, Eighth International Symposium on Laser Metrology, (14 February 2005); doi: 10.1117/12.611645
Show Author Affiliations
Hong Tang, Jet Propulsion Lab. (United States)
Feng Zhao, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 5776:
Eighth International Symposium on Laser Metrology
R. Rodriguez-Vera; F. Mendoza-Santoyo, Editor(s)

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