On-sky AO test bench

Denis Brousseau; Simon Thibault; Jean-François Lavigne; Jean-Pierre Véran

doi:10.1117/12.2233029

11 August 2016 On-sky AO test bench

Denis Brousseau, Simon Thibault, Jean-François Lavigne, Jean-Pierre Véran

Proceedings Volume 9909, Adaptive Optics Systems V; 99092V (2016) https://doi.org/10.1117/12.2233029
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

With the upcoming construction of ELTs, several existing technologies are being pushed beyond their performance limit and it became essential to develop and evaluate alternatives. We present a specifically designed focal plane box which will allow to evaluate, directly on-sky, the performance of a number of next generation adaptive optics related technologies The system will able us to compare the performance of several new wavefront sensors in contrast to a Shack-Hartman wavefront sensor. The system has been designed for the "Observatoire du Mont Mégantic" (OMM) which hosts a telescope having a 1.6-meter diameter primary. The OMM telescope, located halfway between Montreal and Quebec City, is known to be an excellent location to develop and test precursor instruments which can then be upscaled to larger telescopes (ex. SPIOMM which led to SITELLE at the CFHT). We present the results of the first run made at the telescope and also identify problems that were encountered. We also propose a series of modifications to the system that will help to solve these issues.

Citation Download Citation

Denis Brousseau, Simon Thibault, Jean-François Lavigne, and Jean-Pierre Véran "On-sky AO test bench", Proc. SPIE 9909, Adaptive Optics Systems V, 99092V (11 August 2016); https://doi.org/10.1117/12.2233029

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KEYWORDS

Telescopes

Adaptive optics

Wavefront sensors

Indium oxide

Cameras

Point spread functions

Beam splitters

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