Two-dimensional mapping of electro-optic phase retardation in lithium niobate crystals by digital holography

We demonstrate accurate two-dimensional mapping of the phase retardation induced by the electro-optic effect in lithium niobate crystals. Off-axis digital holography is used to investigate congruent z-cut crystals. The spatially resolved optical path difference is interferometrically measured while...

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Published in:Optics letters 2005-07, Vol.30 (13), p.1671-1673
Main Authors: DE ANGELIS, M, DE NICOLA, S, FINIZIO, A, PIERATTINI, G, FERRARO, P, GRILLI, S, PATURZO, M, SANSONE, L, ALFIERI, D, DE NATALE, P
Format: Article
Language:English
Subjects:
Computer-generated holograms
Engineering physics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Holography
Nonlinear optical crystals
Optical materials
Optical physics
Optics
Optisk fysik
Physics
TECHNOLOGY
TEKNIKVETENSKAP
Teknisk fysik
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cited_by cdi_FETCH-LOGICAL-c355t-519542f347ea9d7a9a5ce49091c4fa9992b3435a2f338b5c72e3e7b113e40d3d3
cites cdi_FETCH-LOGICAL-c355t-519542f347ea9d7a9a5ce49091c4fa9992b3435a2f338b5c72e3e7b113e40d3d3
container_end_page 1673
container_issue 13
container_start_page 1671
container_title Optics letters
container_volume 30
creator DE ANGELIS, M
DE NICOLA, S
FINIZIO, A
PIERATTINI, G
FERRARO, P
GRILLI, S
PATURZO, M
SANSONE, L
ALFIERI, D
DE NATALE, P
description We demonstrate accurate two-dimensional mapping of the phase retardation induced by the electro-optic effect in lithium niobate crystals. Off-axis digital holography is used to investigate congruent z-cut crystals. The spatially resolved optical path difference is interferometrically measured while a linearly rising voltage ramp is applied to the crystal. This procedure provides information on the uniformity of crystals' electro-optic properties and offers the ability to detect the presence of defects that is of fundamental importance for reliable processing of photonic devices.
doi_str_mv 10.1364/OL.30.001671
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source Optica Publishing Group (OPG)
subjects Computer-generated holograms
Engineering physics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Holography
Nonlinear optical crystals
Optical materials
Optical physics
Optics
Optisk fysik
Physics
TECHNOLOGY
TEKNIKVETENSKAP
Teknisk fysik
title Two-dimensional mapping of electro-optic phase retardation in lithium niobate crystals by digital holography
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