MEASUREMENT OF PHOTOREFRACTIVE 2-WAVE COUPLING EXPONENTIAL GAIN COEFFICIENT OF LINBO3-FE CRYSTAL

Authors
SUN Q LI YD XU JJ ZHANG XZ ZHANG GQ LIU SM ZHANG GY
Citation
Q. Sun et al., MEASUREMENT OF PHOTOREFRACTIVE 2-WAVE COUPLING EXPONENTIAL GAIN COEFFICIENT OF LINBO3-FE CRYSTAL, Chinese Physics Letters, 15(5), 1998, pp. 348-350
Citations number
5
Categorie Soggetti
Physics
Journal title
Chinese Physics Letters → ACNP
ISSN journal
0256307X
Volume
15
Issue
5
Year of publication
1998
Pages
348 - 350
Database
ISI
SICI code
0256-307X(1998)15:5<348:MOP2CE>2.0.ZU;2-U
Abstract
For a photorefractive crystal, the exponential gain coefficient of two -wave coupling, Gamma, is a constant. In this paper, the constant Gamm a of a LiNbO3:Fe crystal is measured by using Gaussian beams and quasi -uniform beams. The difference between the results is attributed to th e self-defocusing effect of the crystal.