Nonreciprocal feedback in a ring laser and its application

被引：1
|
作者：
Wang, Zhiguo [1 ]
Wang, Fei [1 ]
机构：
[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Dept Optoelect Engn, Changsha 410073, Hunan, Peoples R China
来源：
OPTICS LETTERS | 2012年 / 37卷 / 23期
关键词：
INTERFEROMETRY; CAVITY;
D O I：
10.1364/OL.37.005024
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We reported the feedback characteristics of a ring laser with nonreciprocal feedback configuration. The clockwise/counterclockwise laser output is reflected and then reinjected into the cavity with the same direction. A nonreciprocal device composed of two quarter-wave plates and a Faraday rotator is placed in the feedback path so as to form a nonreciprocal feedback configuration. The beat frequency of the ring laser depends on the parameters of optical components in the nonreciprocal feedback path. As a result, it provides a new method for self-mixing interferometry. We discussed the possibility to use the nonreciprocal feedback to bias the ring laser, which, to our knowledge, is a novel optical biasing method. (C) 2012 Optical Society of America
引用
收藏
页码：5024 / 5026
页数：3
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