Validation of photon noise correction using the OAST stellar interferometer breadboard

Details Validation of photon noise correction using the OAST stellar interferometer breadboard Validation of photon noise correction using the OAST stellar interferometer breadboard

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003optco.217...75l&link_type=abstract

Optics Communications, Volume 217, Issue 1-6, p. 75-83.

Physics

Optics

Scientific paper

This paper reports on an experimental validation of the photon noise correction applied on interferometric data, in the frame of a laboratory stellar interferometer. The main feature of this study comes from the quantitative comparison between the contrasts and phase closure measurements in photon counting regime and simultaneously, on the same interferometer, in high flux level regime. This experiment uses an end-to-end imaging demonstrator including a three-telescope array linked by optical fiber to the mixing station. Contrasts and phase closure are extracted from a temporal fringe pattern. We show that it is possible to correct properly the interferometric data with light power level reaching 0.7 femto-Watt at a 680 nm mean wavelength. This corresponds to a photon flux close to 2.5 photons/ms and to 25 photons for each snap shot.

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