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Optical Engineering

Real-time phase-step estimation in phase-shifting interferometry
Author(s): Rajesh Langoju; Abhijit Patil; Pramod Kumar Rastogi
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Paper Abstract

We present a simple and effective method for estimating arbitrary phase steps in the presence of noise in phase-shifting interferometry. The method is based on the linear prediction property of the sinusoids. Simulation and experimental results obtained from a holographic interferometry prove the efficiency and feasibility of the proposed method.

Paper Details

Date Published: 1 March 2007
PDF: 5 pages
Opt. Eng. 46(3) 035601 doi: 10.1117/1.2715444
Published in: Optical Engineering Volume 46, Issue 3
Show Author Affiliations
Rajesh Langoju, École Polytechnique Fédérale de Lausanne (Switzerland)
Abhijit Patil, École Polytechnique Fédérale de Lausanne (Switzerland)
Pramod Kumar Rastogi, École Polytechnique Fédérale de Lausanne (Switzerland)


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