Experimental examination of frequency locking effect in acousto-optic system

被引：9
|
作者：
Mantsevich, S. N. [1 ]
Balakshy, V. I. [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Phys Dept, Leninskiye Gory 1, Moscow 119991, Russia
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2018年 / 124卷 / 04期
基金：
俄罗斯科学基金会;
关键词：
COLLINEAR DIFFRACTION; BRAGG-DIFFRACTION; DYNAMIC PROCESSES; BISTABLE DEVICE; BISTABILITY; FEEDBACK; CHAOS; BEAM; STABILIZATION; FILTER;
D O I：
10.1007/s00340-018-6923-z
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The optoelectronic system containing collinear acousto-optic cell fabricated on the base of calcium molybdate crystal and positive electronic feedback circuit was examined. The feedback signal is formed due to the optical heterodyning effect that occurs on the cell output and takes place in the special regime of collinear acousto-optic diffraction. It was discovered that three operation modes that may exist in this system. The boundaries between the modes were determined. The positions of the boundaries depend on the main parameters of the system-the incident light intensity and the feedback gain value. The new for acousto-optics phenomenon of acousto-optic system self-oscillations frequency locking by the RF generator signal was discovered and examined experimentally. Such an effect has never been observed before in the acousto-optic systems. It was experimentally shown that frequency locking effect may be used to select one of the multimode semiconductor laser longitudinal modes to improve laser radiation spectral composition.
引用
收藏
页数：17
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