Adaptive optics implementation with a Fourier reconstructor

被引：2

作者：

Glazer, Oded ^{[1
]}

Ribak, Erez N.

Mirkin, Leonid

机构：

[1] Technion Israel Inst Technol, Fac Mech Engn, IL-32000 Haifa, Israel

[2] Technion Israel Inst Technol, Fac Phys, IL-32000 Haifa, Israel

来源：

APPLIED OPTICS | 2007年 / 46卷 / 04期

关键词：

D O I：

10.1364/AO.46.000574

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Adaptive optics takes its servo feedback error cue from a wavefront sensor. The common Hartmann-Shack spot grid that represents the wavefront slopes is usually analyzed by finding the spot centroids. In a novel application, we used the Fourier decomposition of a spot pattern to find deviations from grid regularity. This decomposition was performed either in the Fourier domain or in the image domain, as a demodulation of the grid of spots. We analyzed the system, built a control loop for it, and tested it thoroughly. This allowed us to close the loop on wavefront errors caused by turbulence in the optical system.

引用

页码：574 / 580

页数：7

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