Fiber optic electronic speckle pattern interferometry. Path length stabilised automatic phase stepping

J. D. Valera, D. Harvey, J. D C Jones

Research output: Contribution to journalArticle

Abstract

A fiber optic electronic speckle pattern interferometry (ESPI) system has been demonstrated in which phase stepping was achieved at the frame rate of 25 Hz using a closed-loop control system. Satisfactory operation of the system was illustrated by producing correlation fringes by tilting a flat plate and using phase stepping to recover phase as a function of position on the plate. The expected linear dependence of phase on position was observed.

Original languageEnglish
Pages (from-to)180-184
Number of pages5
JournalIEE Conference Publication
Issue number342
Publication statusPublished - 1991
Event3rd International Conference on Holographic Systems, Components and Applications - Edinburgh, Scotl
Duration: 16 Sep 199118 Sep 1991

Fingerprint Dive into the research topics of 'Fiber optic electronic speckle pattern interferometry. Path length stabilised automatic phase stepping'. Together they form a unique fingerprint.

Cite this