By Topic

Remote (155 km) Fiber Bragg Grating Interrogation Technique Combining Raman, Brillouin, and Erbium Gain in a Fiber Laser

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Daniel Leandro ; Departamento de Ingeniera Electrica y Electrnica, Universidad Publica de Navarra, Pamplona, Spain ; Angel Ullan ; Alayn Loayssa ; Jose Miguel Lopez-Higuera
more authors

We present and demonstrate a technique for remote sensing of fiber Bragg gratings (FBGs) beyond 150 km. The system combines Raman, Brillouin, and erbium gain in a linear cavity fiber laser and deploys a novel heterodyne detection technique to avoid the signal-to-noise ratio limitations produced by Rayleigh scattering. Two FBGs located in series were interrogated at 155 km away from the processing unit using 0.6 W of Raman pump and less than 2 mW of Brillouin pump provided by a tunable wavelength-swept laser. Heterodyne detection brings forth a signal-to-noise ratio of approximately 10 dB in our measurements.

Published in:

IEEE Photonics Technology Letters  (Volume:23 ,  Issue: 10 )