Abstract
The size of the corrected field of view of an adaptive optics system is though to be a severe limitation on the usefulness of an adaptive optics system. We show that under good seeing conditions the useful field of view is an order of magnitude larger than the field predicted by the classical isoplanatic angle. The corrected field of view is experimentally shown to increase when using spatially degraded wavefront corrections. Two methods of spatially degrading the wavefront were tested: low-order modal wavefront reconstructions and the use of a low-altitude Rayleigh wavefront reference beacon. In both cases the on- axis performance is sacrificed for an increased field of view.
Original language | English (US) |
---|---|
Pages (from-to) | 384-390 |
Number of pages | 7 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3353 |
DOIs | |
State | Published - 1998 |
Event | Adaptive Optical System Technologies - Kona, HI, United States Duration: Mar 23 1998 → Mar 23 1998 |
Keywords
- Isoplanatic angle
- Modal correction
- Rayleigh guide star
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering