Extended use of two crossed Babinet compensators for wavefront sensing in adaptive optics

被引：0

作者：

Paul, Lancelot ^{[1
]}

Saxena, Ajay Kumar ^{[1
]}

机构：

[1] Indian Inst Astrophys, Photon Div, Bangalore 560034, Karnataka, India

来源：

OPTICAL ENGINEERING | 2010年 / 49卷 / 12期

关键词：

wavefront sensing; adaptive optics; shearing interferometry; FRINGE-PATTERN ANALYSIS; VECTORIAL-SHEARING INTERFEROMETER; CONCAVE ASPHERIC SURFACES; FOURIER-TRANSFORM; SENSITIVITY; TURBULENCE;

D O I：

10.1117/1.3518068

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An extended use of two crossed Babinet compensators as a wavefront sensor for adaptive optics applications is proposed. This method is based on the lateral shearing interferometry technique in two directions. A single record of the fringes in a pupil plane provides the information about the wavefront. The theoretical simulations based on this approach for various atmospheric conditions and other errors of optical surfaces are provided for better understanding of this method. Derivation of the results from a laboratory experiment using simulated atmospheric conditions demonstrates the steps involved in data analysis and wavefront evaluation. It is shown that this method has a higher degree of freedom in terms of subapertures and on the choice of detectors, and can be suitably adopted for real-time wavefront sensing for adaptive optics. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3518068]

引用

页数：11

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