PHASE MEASUREMENT OF OPTICAL WAVEFRONT BY AN SLM DIFFERENTIATION FILTER

Hideo Furuhashi, Javier Valle Mayorga, Yoshiyuki Uchida, Akihiro Kono

Abstract

A system is proposed that employs a spatial light modulator as a differentiation filter to measure the phase of an optical wavefront. The pattern, position and orientation of the filter can be controlled electrically. This system measures the phase derivative of a wavefront that passes through a transparent phase object. The 3D shape of the object can be calculated by integrating the phase derivative.

Keywords

wavefront, SLM, differentiation filter

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IMEKO-WC-2009-TC2-333.pdf

DOI

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IMEKO TC

TC2 - Photonics

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