Calibration of reference light power in Brillouin optical time domain reflectometer

被引：0
|
作者：
Wang J. [1 ]
Lu Y. [1 ]
Zhang X. [1 ]
Wang F. [1 ]
机构：
[1] Institute of Optical Communication Engineering, Nanjing University, Nanjing
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 06期
关键词：
Brillouin optical time domain reflectometer; Electro-optic modulation; Optic-fiber sensing; Optical feedback; Reference light calibration;
D O I：
10.3788/CJL20103706.1456
中图分类号：
学科分类号：
摘要：
A novel and simple reference light power calibration method is proposed, which has the advantage of frequency discriminator. The difference between light power of the total output of electro-optic modulator and the intended reference light power is detected at each frequency point, and then used as the feedback signal to control the output power of microwave source to calibrate the reference light power. The feasibility of the method is analyzed theoretically and verified through simulations and experiments. It is demonstrated that, after the calibration, the maximum error between the reference light power and intended power is reduced to one-third of that observed before calibration.
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收藏
页码：1456 / 1461
页数：5
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