Translation Insensitive Heterodyne Interferometers

T R O'Meara

doi:10.1117/12.937569

2 March 1984 Translation Insensitive Heterodyne Interferometers

T R O'Meara

Proceedings Volume 0440, Synthetic Aperture Systems I; (1984) https://doi.org/10.1117/12.937569
Event: 27th Annual Technical Symposium, 1983, San Diego, United States

Abstract

Translation insensitive (TI) heterodyne interferometers have the property that a wave-front may be sampled and compared (in phase) at two arbitrary points on a plane without requiring precision control on the reference feed paths to the heterodyne detectors. Several different principles may be employed, some of which exploit nonlinear phase conjugation. The wavefront may be extracted either from pupil planes or focal planes with appropriate changes in the instrumentation.

Citation Download Citation

T R O'Meara "Translation Insensitive Heterodyne Interferometers", Proc. SPIE 0440, Synthetic Aperture Systems I, (2 March 1984); https://doi.org/10.1117/12.937569

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