A visible/infra-red low noise fast readout wavefront sensor for all-sky adaptive optics

Details A visible/infra-red low noise fast readout wavefront sensor for all-sky adaptive optics A visible/infra-red low noise fast readout wavefront sensor for all-sky adaptive optics

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006spie.6276e..27k&link_type=abstract

High Energy, Optical, and Infrared Detectors for Astronomy II. Edited by Dorn, David A.; Holland, Andrew D.. Proceedings of th

Astronomy and Astrophysics

Astronomy

Scientific paper

Current adaptive optic systems are limited by the read noise and sensitivity of their wavefront cameras. Recent advances in substrate thinning are producing focal plane arrays with high quantum efficiencies and extended spectral response over 0.5 to 1.6 microns. Infra Red Laboratories have developed and tested a new ultra-low noise readout integrated circuit (ROIC) that has a performance of 2 electrons (r.m.s.) per pixel read. We combine these two technologies to produce a new detector capable of dramatically increasing the number of available natural guide stars across the sky (and hence increased sky coverage), even in heavily obscured regions near the Galactic plane.

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