Open AccessAmplitude and phase reconstruction of photorefractive spatial bright-soliton in LiNbO_3 during its dynamic formation by digital holography
Author(s) -
Melania Paturzo,
Lisa Miccio,
S. De Nicola,
P. De Natale,
Pietro Ferraro
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.008243
Subject(s) - optics , photorefractive effect , wavefront , lithium niobate , holography , soliton , amplitude , phase (matter) , holographic interferometry , digital holography , physics , crystal (programming language) , field (mathematics) , nonlinear system , computer science , mathematics , quantum mechanics , pure mathematics , programming language
The time behaviour of bright spatial solitons in congruent undoped lithium niobate crystal is experimentally investigated. Full field characterization of the optical wavefront emerging from the crystal during the soliton formation process is performed by digital holographic method. Experimental results of the amplitude and phase maps of the field distribution at the exit face of the crystal allow the real-time monitoring of the evolution of the soliton beam from the application of the external field to the end of the process when the generation of the channel waveguide appears to be stable. The features of the dynamics of the soliton formation are visualized, analyzed and compared to a time-dependent numerical model.