Distributed Raman amplification using ultra-long fiber laser with a ring cavity: characteristics and sensing application

被引：30

作者：

Jia, Xin-Hong ^{[1
,2
]}

Rao, Yun-Jiang ^{[1
]}

Wang, Zi-Nan ^{[1
]}

Zhang, Wei-Li ^{[1
]}

Yuan, Cheng-Xu ^{[1
]}

Yan, Xiao-Dong ^{[1
]}

Li, Jin ^{[1
]}

Wu, Han ^{[1
]}

Zhu, Ye-Yu ^{[1
]}

Peng, Fei ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Educ Minist China, Key Lab Opt Fiber Sensing & Commun, Chengdu 611731, Sichuan, Peoples R China

[2] Sichuan Normal Univ, Sch Phys & Elect Engn, Chengdu 610068, Sichuan, Peoples R China

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 18期

关键词：

BOTDA; TRANSMISSION; DISTANCE; SENSORS;

D O I：

10.1364/OE.21.021208

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Distributed Raman amplification (DRA) based on ultra-long fiber laser (UL-FL) pumping with a ring cavity is promising for repeaterless transmission and sensing. In this work, the characteristics (including gain, nonlinear impairment and noise figure) for forward and backward pumping of the ring-cavity based DRA scheme are fully investigated. Furthermore, as a typical application of the proposed configuration, ultra-long-distance distributed sensing with Brillouin optical time-domain analysis (BOTDA) over 142.2km fiber with 5m spatial resolution and +/- 1.5 degrees C temperature uncertainty is achieved, without any repeater. The key point for the significant performance improvement is the system could offer both of uniform gain distribution and considerably suppressed pump-probe relative intensity noise (RIN) transfer, by optimized design of system structure and parameters. (C)2013 Optical Society of America

引用

页码：21208 / 21217

页数：10

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