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

Lancelot Paul; Ajay Kumar Saxena

doi:10.1117/1.3518068

1 December 2010 Extended use of two crossed Babinet compensators for wavefront sensing in adaptive optics

Lancelot Paul, Ajay Kumar Saxena

Author Affiliations +

Optical Engineering, Vol. 49, Issue 12, 126601 (December 2010). https://doi.org/10.1117/1.3518068

Abstract

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.

©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Lancelot Paul and Ajay Kumar Saxena "Extended use of two crossed Babinet compensators for wavefront sensing in adaptive optics," Optical Engineering 49(12), 126601 (1 December 2010). https://doi.org/10.1117/1.3518068

Published: 1 December 2010

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