Benefit of higher closed-loop bandwidths in ocular adaptive optics

被引：67

作者：

Diaz-Santana, L

Torti, C

Munro, I

Gasson, P

Dainty, C

机构：

[1] City Univ London, Dept Optometry & Visual Sci, Appl Vis Res Ctr, London EC1V 0HB, England

[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Photon Grp, London SW7 2BW, England

[3] Natl Univ Ireland, Dept Expt Phys, Galway, Ireland

来源：

OPTICS EXPRESS | 2003年 / 11卷 / 20期

关键词：

D O I：

10.1364/OE.11.002597

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2003 Optical Society of America.

引用

页码：2597 / 2605

页数：9

共 14 条

[1]

Diaz Santana Haro L, 1999, Opt Lett, V24, P61

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