Abstract
An optoelectronic swept-frequency laser (SFL) is an optoelectronic feedback system that includes an auxiliary interferometer that can exert precise control over the optical frequency sweep. The arm-length difference (ALD) of the auxiliary interferometer directly affects the performance of the whole system. We established a theoretical model to choose the optimal ALD of an auxiliary interferometer in an optoelectronic SFL system using a frequency-modulated continuous-wave reflectometry experimental setup. The experimental results indicated that, based on our system, the optimal ALD was 7 m, which agreed with the theoretical analysis. As an example application, we implemented the proposed system for measurement of the group refractive index of a glass sample. A minimum measurement error of 0.12% was obtained with the ALD of 7 m.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
Naresh Satyan, Arseny Vasilyev, George Rakuljic, Victor Leyva, and Amnon Yariv
Opt. Express 17(18) 15991-15999 (2009)
Jie Qin, Ling Zhang, Weilin Xie, Ran Cheng, Zhangweiyi Liu, Wei Wei, and Yi Dong
Opt. Express 27(14) 19359-19368 (2019)
Zheyi Yao, Thomas Mauldin, Zhenyu Xu, Gerald Hefferman, and Tao Wei
Appl. Opt. 60(25) 7523-7529 (2021)