High Space -Bandwidth Wavefront Sensing by Sampling and Spatial Multiplexing
Tumbar, Remy
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https://hdl.handle.net/2142/80722
Description
Title
High Space -Bandwidth Wavefront Sensing by Sampling and Spatial Multiplexing
Author(s)
Tumbar, Remy
Issue Date
2001
Doctoral Committee Chair(s)
Brady, David J.
Department of Study
Electrical Engineering
Discipline
Electrical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Electronics and Electrical
Language
eng
Abstract
The SFS is a breakthrough concept in wavefront sensor design. It is, to our knowledge, the first high-accuracy, high-resolution, vibration-insensitive, one-shot wavefront sensor. It achieves high accuracy by using a phase-shift shearing interferometric approach in detecting wavefront phase differences. It achieves high resolution by sampling the input wavefront and fanning out the samples to the output plane (space multiplexing), on a common optical path. The common path fan-out configuration makes the system compact and vibration-insensitive.
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