Open AccessTHE EFFECT OF PHYSICAL PARAMETERS ON THE TEMPERATURE CHARACTERISTICS OF TWO-BEAM COUPLING IN PHOTOREFRACTIVE CRYSTAL
Author(s) -
Jinsong Liu
Publication year - 1993
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.42.1086-2
Subject(s) - photorefractive effect , crystal (programming language) , materials science , coupling (piping) , range (aeronautics) , atmospheric temperature range , beam (structure) , point (geometry) , optics , coupling parameter , thermal conduction , optoelectronics , physics , thermodynamics , computer science , geometry , mathematics , metallurgy , composite material , programming language
The temperature characteristics of two-beam coupling in photorefractive crystal was discussed by using the one-carrier and one-level band-conduction model. The effect of physical parameters on the temperature characteristics was analyzed generally. In this paper, the concept of thermosenseless range has been put forward. If a crystal operates in this range, the optimum results of high efficiency, small thermonoise and small thermodrift of operation point can be obtained. The relationship between physical parameter and the location and extent of the range has been given, the method to amend experiment has been suggested.