Long distance Φ-OTDR system based on Raman and EDFA synthetic amplification

Xiaozhong Tian; Yuan Yu; Meng Zhao M.D.; Guohui Jiang

doi:10.1117/12.2284935

25 October 2017 Long distance Φ-OTDR system based on Raman and EDFA synthetic amplification

Xiaozhong Tian, Yuan Yu, Meng Zhao M.D., Guohui Jiang

Proceedings Volume 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications; 104640X (2017) https://doi.org/10.1117/12.2284935
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China

Abstract

Comprehensive using of Raman amplifier and bi-directional Er-doped fiber amplifier (EDFA), a long distance (72.3 km) Φ-OTDR system is demonstrated. In this system, a LD laser (~500mw) with wavelength from 1420 nm to 1470 nm is used as both EDFA pump power and Raman pump power. Meanwhile, difference value of upper-envelope and lower-envelope of Rayleigh scattering trace is calculated to test the sensitivity of the system, the intrusion with SNR of 3.99 dB、8.59 dB at two test points of sensing fiber is extracted.

Citation Download Citation

Xiaozhong Tian, Yuan Yu, Meng Zhao M.D., and Guohui Jiang "Long distance Φ-OTDR system based on Raman and EDFA synthetic amplification", Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 104640X (25 October 2017); https://doi.org/10.1117/12.2284935

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available