Benefit of higher closed-loop bandwidths in ocular adaptive optics

Luis Diaz-Santana; Cristiano Torti; Ian Munro; Paul Gasson; Chris Dainty

doi:10.1364/OE.11.002597

Benefit of higher closed-loop bandwidths in ocular adaptive optics

Luis Diaz-Santana, Cristiano Torti, Ian Munro, Paul Gasson, Chris Dainty

Physics

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

79 Citations (Scopus)

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.

Original language	English
Pages (from-to)	2597-2605
Number of pages	9
Journal	Optics Express
Volume	11
Issue number	20
DOIs	https://doi.org/10.1364/OE.11.002597
Publication status	Published - Oct 2003

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Benefit of higher closed-loop bandwidths in ocular adaptive optics

Abstract

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