Experimental Demonstration of Sequential Operation Approach for a Three-Sided Pyramid Wavefront Sensor | IEEE Journals & Magazine | IEEE Xplore

Experimental Demonstration of Sequential Operation Approach for a Three-Sided Pyramid Wavefront Sensor


(a) Schematic of the sequential operation approach for the STPWFS. The dashed line indicates the discarded light. (b) Illustration of the three steps of the sensing cycle...
Impact Statement:
Our main contribution is the development of a sequentially operated three-sided pyramid wavefront sensor (STPWFS) to be used in adaptive optics (AO) systems. We believe t...Show More

Abstract:

We describe a sequential operation approach for a three-sided pyramid wavefront sensor (PWFS) based on a micromirror array with hexagonal geometry. The geometrical optics...Show More
Impact Statement:
Our main contribution is the development of a sequentially operated three-sided pyramid wavefront sensor (STPWFS) to be used in adaptive optics (AO) systems. We believe t...Show More

Abstract:

We describe a sequential operation approach for a three-sided pyramid wavefront sensor (PWFS) based on a micromirror array with hexagonal geometry. The geometrical optics analysis and numerical simulations show that a linear relationship exists between the signals calculated by the sensing data and the local tilt of the wavefront. We discuss the selection of parameter index that is used in our experiment and build a closed-loop system with this wavefront sensor and a 21-element deformable mirror as a wavefront corrector. The experimental results confirm the feasibility of using a nonmodulated sequential three-sided PWFS in adaptive optics systems.
(a) Schematic of the sequential operation approach for the STPWFS. The dashed line indicates the discarded light. (b) Illustration of the three steps of the sensing cycle...
Published in: IEEE Photonics Journal ( Volume: 8, Issue: 4, August 2016)
Article Sequence Number: 2701113
Date of Publication: 16 June 2016

ISSN Information:


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