OPTICAL DIFFERENTIATION PHASE MEASUREMENT USING A MODIFIED MULTI-STEP BIAS-SHIFTING METHOD

Hideo Furuhashi, Yoshiyuki Uchida, Kiyofumi Matsuda, Akihiro Kono

Abstract

An optical differentiation phase measurement system using a modified multi-step bias-shifting method is proposed. The signal obtained by multi-step bias shifting is divided into two groups in this new method. The effectiveness of the new method was demonstrated using a computer simulation.

Keywords

phase measurement, wavefront, optical differentiation

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PWC-2006-TC2-008u.pdf

DOI

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IMEKO TC

TC2 - Photonics

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