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2 March 1984 Translation Insensitive Heterodyne Interferometers
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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.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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