Benefit of higher closed�??loop bandwidths in ocular adaptive optics
Optics Express, Vol. 11, Issue 20, pp. 2597-2605 (2003)
http://dx.doi.org/10.1364/OE.11.002597
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Abstract
We present an ocular adaptive optics system with a wavefront sampling rate of 240 Hz and maximum recorded closed-loop bandwidth close to 25 Hz, but with typical performances around 10 Hz. The measured bandwidth depended on the specific system configuration and the particular subject tested. An analysis of the system performance as a function of achieved bandwidth showed consistently higher Strehl ratios for higher closed-loop bandwidths. This may be attributed to a combination of limitations on the available technology and the dynamics of ocular aberrations. We observed dynamic behaviour with a maximum frequency content around 30 Hz.
© 2003 Optical Society of America
OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices
(330.5370) Vision, color, and visual optics : Physiological optics
ToC Category:
Research Papers
History
Original Manuscript: August 15, 2003
Revised Manuscript: September 24, 2003
Published: October 6, 2003
Citation
Luis Diaz-Santana, Cristiano Torti, Ian Munro, Paul Gasson, and Chris Dainty, "Benefit of higher closed�??loop bandwidths in ocular adaptive optics," Opt. Express 11, 2597-2605 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-20-2597
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