Estimation of Cyclic Error Due to Scattering in the Internal OPD Metrology of the Space Interferometry Mission


A common-path laser heterodyne interferometer capable of measuring the internal optical path difference (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

Similar works

Full text


NASA Technical Reports Server

Full text is not available time updated on 5/31/2013

This paper was published in NASA Technical Reports Server.

Having an issue?

Is data on this page outdated, violates copyrights or anything else? Report the problem now and we will take corresponding actions after reviewing your request.