Laboratory demonstrations of multi-object adaptive optics in the visible on a 10 meter telescope

Details Laboratory demonstrations of multi-object adaptive optics in the visible on a 10 meter telescope Laboratory demonstrations of multi-object adaptive optics in the visible on a 10 meter telescope

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.7015e...5a&link_type=abstract

Adaptive Optics Systems. Edited by Hubin, Norbert; Max, Claire E.; Wizinowich, Peter L. Proceedings of the SPIE, Volume 7015

Physics

Optics

1

Scientific paper

We have demonstrated MOAO-type atmospheric compensation on a 10 meter telescope at visible wavelengths with the UCO/Lick MCAO/MOAO testbed in the Laboratory for Adaptive Optics at UCSC. We report Strehls of ~20% in R band (658 nm) on-axis and Strehls of ~15% off-axis 25" for a 3D Mauna Kea-type atmosphere with r0 = 15 cm and Τ0 = 3.5". We show that a tomographic MOAO approach with 5 LGS's in a 50" constellation is sufficient to realize good correction in the visible. Two major improvements to the testbed realized this gain: (1) An upgrade to 64x64 subapertures across a 10 meter pupil (2) and a predictor-corrector wind model. We discuss limitations to wide-field visible light AO on 8-10 meter class telescopes and stress that the tomographic error due to blind modes is frequently the largest field-dependent error. We use a predictor-corrector wind model (Wiberg et al. 2006) to take advantage of windlayer shearing in the atmosphere to reduce the tomographic error over a 50" diameter field. Depending on the validity of the Taylor frozen flow model for individual layers in the real atmosphere, this approach could be more effective than increasing the number of LGS's.

Affiliated with

Also associated with

No associations

Rating

Laboratory demonstrations of multi-object adaptive optics in the visible on a 10 meter telescope does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Laboratory demonstrations of multi-object adaptive optics in the visible on a 10 meter telescope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laboratory demonstrations of multi-object adaptive optics in the visible on a 10 meter telescope will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-790714