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21 February 2003 Stellar interferometry in photon-counting regime: experiment on a laboratory prototype
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Abstract
We report on the experimental validation of the photon noise correction applied on interferometric data, in the frame of an imaging laboratory test using the end-to-end demonstrator "Optical Aperture Synthesis Technologies 2". The light flux is scaled to astronomy level to achieve a quantitative comparison between the contrasts and phase closure measurements simultaneously measured in photon counting regime and in high flux level regime. This experiment uses a three-telescope array linked by optical fiber to the mixing station. We show that it is possible to correct properly the interferometric data with light power levels reaching 1 femto-Watt at a 680 nm mean wavelength. This corresponds to a photon flux close to 2.5 photons per millisecond and to 25 photons for each snap shot.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Emmanuel Longueteau, Laurent Delage, and Francois Reynaud "Stellar interferometry in photon-counting regime: experiment on a laboratory prototype", Proc. SPIE 4838, Interferometry for Optical Astronomy II, (21 February 2003); https://doi.org/10.1117/12.457130
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