Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Novel long-distance fiber-optic sensing systems based on random fiber lasers

[+] Author Affiliations
Zinan Wang, Xinhong Jia, Yunjiang Rao, Yun Jiang, Weili Zhang

Univ. of Electronic Science & Technology of China (China)

Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835142 (January 31, 2012); doi:10.1117/12.928031
Text Size: A A A
From Conference Volume 8351

  • Third Asia Pacific Optical Sensors Conference
  • John Canning; Gangding Peng
  • Sydney, Australia | January 31, 2012

abstract

The novel concept of utilizing a random fiber laser (RFL) to extend the sensing distance of fiber-optic sensing systems is proposed for the first time to our knowledge. In this paper, two schemes based on the RFL with a fiber Bragg grating (FBG) are experimentally demonstrated to verify the concept. The first one is a 100km FBG temperature sensing system, in which a 100km RFL provides an effective way to enhance the sensing signal of the FBG sensor due to its strong lasing radiation across the 100km fiber span. It is the first time to find that the RFL without the FBG is a temperatureinsensitive distributed lasing cavity, which offers stable long-distance transmission for the sensing signal. The second one is a 100km Brilloiun optical time domain analyzer (BOTDA), in which the generated random lasing is used as a fully distributed Raman pump and hence stable Raman amplification can be obtained to enhance the Brilloiun sensing signal. In principle, such a novel concept can be adopted for any type of distributed fiber-optic sensors as the RFL can be used as a stable distributed Raman pump for sensing signal amplification along the whole length of the fiber.

© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Zinan Wang ; Xinhong Jia ; Yunjiang Rao ; Yun Jiang and Weili Zhang
"Novel long-distance fiber-optic sensing systems based on random fiber lasers", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835142 (January 31, 2012); doi:10.1117/12.928031; http://dx.doi.org/10.1117/12.928031


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement

 

 

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.