Hybrid OTDR-fiber laser system for remote sensor multiplexing

This paper describes the development of a hybrid multiplexing network for optical fiber sensors using a multiwavelength lasing long-range structure and the simultaneous utilization of an OTDR on the same network to interrogate displacement sensors based on microbenders. With this design, simultaneous interrogation of displacement and temperature was carried out 50 km away from the system header.

[1]  Young-Geun Han,et al.  Investigation of Raman fiber laser temperature probe based on fiber Bragg gratings for long-distance remote sensing applications. , 2004, Optics express.

[2]  Salvador Sales,et al.  An amplified coarse wavelength division multiplexing self-referencing sensor network based on phase-shifted FBGs in transmissive configuration , 2009 .

[3]  Fuyun Lu,et al.  Stable and uniform dual-wavelength erbium-doped fiber laser based on fiber Bragg gratings and photonic crystal fiber. , 2005, Optics express.

[4]  M. Lopez-Amo,et al.  Stability Comparison of Two Ring Resonator Structures for Multiwavelength Fiber Lasers Using Highly Doped Er-Fibers , 2009, Journal of Lightwave Technology.

[5]  M. Lopez-Amo,et al.  Comparison of the Stability of Ring Resonator Structures for Multiwavelength Fiber Lasers Using Raman or Er-Doped Fiber Amplification , 2009, IEEE Journal of Quantum Electronics.

[6]  S. Yamashita,et al.  Multiwavelength erbium-doped fibre laser using intracavity etalon and cooled by liquid nitrogen , 1996 .

[7]  J. W. Berthold,et al.  Historical review of microbend fiber-optic sensors , 1995 .

[8]  김상혁,et al.  Raman amplifier-based long-distance remote, strain and temperature sensing system using an erbium-doped fiber and a fiber Bragg grating , 2004 .

[9]  Young-Geun Han,et al.  Multiwavelength Raman-fiber-laser-based long-distance remote sensor for simultaneous measurement of strain and temperature. , 2005, Optics letters.

[10]  V. P. Mahadevan Pillai,et al.  OTDR Based Fiber Optic Microbend Sensor for Distributed Sensing Applications in Structural Pressure Monitoring , 2006 .

[11]  Manuel Lopez-Amo,et al.  Fiber‐optic sensor active networking with distributed erbium‐doped fiber and Raman amplification , 2008 .

[12]  Fei Luo,et al.  A fiber optic microbend sensor for distributed sensing application in the structural strain monitoring , 1999 .

[13]  Yun-Jiang Rao,et al.  Long-distance fiber Bragg grating sensor system with a high optical signal-to-noise ratio based on a tunable fiber ring laser configuration. , 2006, Optics letters.

[14]  O. Frazão,et al.  Quasi-distributed displacement sensor for structural monitoring using a commercial OTDR , 2006 .

[15]  Anand Asundi,et al.  Optical time-domain reflectometry for distributed sensing of the structural strain and deformation , 1999, International Symposium on Photonics and Applications.