GET THE APP

Upconversion Brillouin optical-time domain reflectometry
..

Journal of Lasers, Optics & Photonics

ISSN: 2469-410X

Open Access

Upconversion Brillouin optical-time domain reflectometry


5th International Conference and Exhibition on Lasers, Optics & Photonics

November 28-30, 2016 Atlanta, USA

Mingjia Shangguan

University of Science and Technology of China, China

Scientific Tracks Abstracts: J Laser Opt Photonics

Abstract :

A direct-detection Brillouin optical time-domain reflectometry (BOTDR) using a photon-counting up-conversion detector (UCD) and an all-fiber structure Fabry├ó┬?┬?Perot scanning interferometer (FFP-SI) is demonstrated with shot-noise limited performance. In order to detect the weak spontaneous Brillouin backscatter signal efficiently, an ultra-low noise equivalent power of the photoncounting UPD is adopted, which up-converts the backscattering signal at 1548.1 nm to 863 nm, and then detected by a Si-APD. The final system efficiency of the UPD is 15% with a noise of 40 counts per second. By using high spectral resolution of the FFP-SI, the Brillouin spectra along a polarization maintain fiber (PMF) is analyzed in the optical frequency domain directly. In comparison with heterodyne BOTDR, direct-detection BOTDR has better EM compatibility and faster speed in data processing. In experiments, with peak input power of 20 dBm, temperature profile along a 9 km PMF is retrieved according to the Brillouin shift, with spatial/temporal resolution of 2 m/15 s. The precision is 0.7├?┬║C at the leading end and 1.2├?┬║C at the trailing end.

Biography :

Mingjia Shangguan has received his BS degree from Jilin University of Architecture in 2012. He is pursuing his PhD in Hefei National Laboratory for Physical Sciences at the Microscale at University of Science and Technology of China. His current research interests include Upconversion Technique and its application in Optical Fiber Sensors.

Email: mingjia@mail.ustc.edu.cn

Awards Nomination

50+ Million Readerbase

Recommended Conferences

Journal Highlights

Google Scholar citation report
Citations: 279

Journal of Lasers, Optics & Photonics received 279 citations as per Google Scholar report

Journal of Lasers, Optics & Photonics peer review process verified at publons

Indexed In

Recommended Conferences
 
arrow_upward arrow_upward