PHASE-STEPPING TECHNIQUE WITH AN ELECTROOPTIC CRYSTAL IN DIGITAL SPECKLE PATTERN INTERFEROMETRY

Authors
ANGEL L TEBALDI M HENAO R TAGLIAFERRI A TRIVI M BOLOGNINI N TORROBA R
Citation
L. Angel et al., PHASE-STEPPING TECHNIQUE WITH AN ELECTROOPTIC CRYSTAL IN DIGITAL SPECKLE PATTERN INTERFEROMETRY, Optics communications, 149(4-6), 1998, pp. 235-238
Citations number
10
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
149
Issue
4-6
Year of publication
1998
Pages
235 - 238
Database
ISI
SICI code
0030-4018(1998)149:4-6<235:PTWAEC>2.0.ZU;2-9
Abstract
The use of an electro-optic crystal as phase-stepping device in a digi tal speckle interferometer is discussed. Phase stepping is introduced by varying the external voltage applied to the crystal. The crystal ca libration procedure is outlined and errors are discussed. Experimental results compared to those obtained with a piezo-electrically driven m irror are presented. (C) 1998 Elsevier Science B.V.