Performance improvements of Shack-Hartmann sensors with keystone design lenslet arrays

Details Performance improvements of Shack-Hartmann sensors with keystone design lenslet arrays Performance improvements of Shack-Hartmann sensors with keystone design lenslet arrays

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4839..266k&link_type=abstract

Adaptive Optical System Technologies II. Edited by Wizinowich, Peter L.; Bonaccini, Domenico. Proceedings of the SPIE, Volume 4

Computer Science

1

Scientific paper

Shack-Hartmann based wavefront sensors, used to compensate atmospheric turbulence, appear to be less sensitive than cur-vature based wavefront sensors by more than a magnitude. Besides their read noise free APD detectors and different meas-urement principle, the sensitivity of curvature sensors may benefit from the keystone shaped lenslet geometry which opti-mally balances aperture coverage and illumination of individual subapertures. This paper describes the implementation of a keystone shaped lenslet array for the ALFA Shack-Hartmann based AO system. We compare the novel design with hexago-nal shaped lenslets under different operating conditions such as selected modal basis set and number of compensated modes theoretically and in practice.

Affiliated with

Also associated with

No associations

Rating

Performance improvements of Shack-Hartmann sensors with keystone design lenslet arrays 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 Performance improvements of Shack-Hartmann sensors with keystone design lenslet arrays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Performance improvements of Shack-Hartmann sensors with keystone design lenslet arrays will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-915622