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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 16 — Jun. 1, 1996
  • pp: 3002–3009

Dispersed fringe tracking with the multi-r o apertures of the Grand Interféromètre à 2 Télescopes

L. Koechlin, P. R. Lawson, D. Mourard, A. Blazit, D. Bonneau, F. Morand, Ph. Stee, I. Tallon-Bosc, and F. Vakili  »View Author Affiliations


Applied Optics, Vol. 35, Issue 16, pp. 3002-3009 (1996)
http://dx.doi.org/10.1364/AO.35.003002


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Abstract

A new fringe tracker based on photon-counting detectors and real-time image processing has been implemented on the Grand Interféromètre à 2 Télescopes at the Observatoire de la Côte d’Azur. Fringe visibilities have been recorded on P Cygni and other stars across the Hα emission line with optical path differences stabilized to between 4 and 7 μm rms (1% of the coherence length). We present our initial results and describe the principle, implementation, and performance of the fringe tracker.

© 1996 Optical Society of America

History
Original Manuscript: April 17, 1995
Revised Manuscript: October 31, 1995
Published: June 1, 1996

Citation
L. Koechlin, P. R. Lawson, D. Mourard, A. Blazit, D. Bonneau, F. Morand, Ph. Stee, I. Tallon-Bosc, and F. Vakili, "Dispersed fringe tracking with the multi-ro apertures of the Grand Interféromètre à 2 Télescopes," Appl. Opt. 35, 3002-3009 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-16-3002

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