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Proceedings Paper

Beam design of a noncooperative interferometer
Author(s): Michael Hoelscher; Wolfgang Holzapfel
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Paper Abstract

An optical minimum configuration of a laser interferometer for noncooperative scattering objects is investigated. An optimization of the SNR (signal-to-noise ratio) of the homodyne receiver is achieved by beam design. Scattering measurement object surfaces generate a speckle pattern on the detector surface which influences the SNR. Within the whole operating range of the optics, the transmitted light spot on the surface under investigation should therefore be small. The receiving optics should image the light spot onto the detector surface. The detection of a noncooperative object in a distance of 26 m is proven experimentally.

Paper Details

Date Published: 25 November 1993
PDF: 12 pages
Proc. SPIE 2000, Current Developments in Optical Design and Optical Engineering III, (25 November 1993); doi: 10.1117/12.163638
Show Author Affiliations
Michael Hoelscher, Univ.-Gesamthochschule Kassel (Germany)
Wolfgang Holzapfel, Univ.-Gesamthochschule Kassel (Germany)

Published in SPIE Proceedings Vol. 2000:
Current Developments in Optical Design and Optical Engineering III
Robert E. Fischer; Warren J. Smith, Editor(s)

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