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Applied Optics

Applied Optics


  • Vol. 42, Iss. 31 — Nov. 1, 2003
  • pp: 6305–6313

Interferential scanning grating position sensor operating in space at 4 K

Guy Michel, Kjetil Dohlen, Jerome Martignac, Jean-Claude Lecullier, Patrick Levacher, and Claude Colin  »View Author Affiliations

Applied Optics, Vol. 42, Issue 31, pp. 6305-6313 (2003)

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An interferential position sensor for operation in space at a deep cryogenic temperature (4 K) is derived from a commercial sensor. The application is for the Spectral and Photometric Imaging Receiver submillimetric imaging Fourier-transform spectrometer on the Herschel space telescope. This sensor is used to control the displacement of the interferometer’s moving mirrors and to sample the interferograms. This development addresses the following points: minimization of the effects of cooling critical optical parts, introduction of a fully redundant focal plane, selection of optoelectronic components efficient at 4 K, and design of a cryogenic preamplifier.

© 2003 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.4120) Instrumentation, measurement, and metrology : Moire' techniques
(120.6810) Instrumentation, measurement, and metrology : Thermal effects

Original Manuscript: March 10, 2003
Revised Manuscript: July 8, 2003
Published: November 1, 2003

Guy Michel, Kjetil Dohlen, Jerome Martignac, Jean-Claude Lecullier, Patrick Levacher, and Claude Colin, "Interferential scanning grating position sensor operating in space at 4 K," Appl. Opt. 42, 6305-6313 (2003)

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