Ultra-long range distributed fibre sensing using virtually transparent propagation

Miguel Gonzalez-Herraez*, Sonia Martin-Lopez, Mercedes Alcon-Camas, Pedro Corredera, Luc Thévenaz, Juan Diego Ania-Castañón

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference publication

Abstract

Distributed fibre sensors provide unique capabilities for monitoring large infrastructures with high resolution. Practically, all these sensors are based on some kind of backscattering interaction. A pulsed activating signal is launched on one side of the sensing fibre and the backscattered signal is read as a function of the time of flight of the pulse along the fibre. A key limitation in the measurement range of all these sensors is introduced by fibre attenuation. As the pulse travels along the fibre, the losses in the fibre cause a drop of signal contrast and consequently a growth in the measurement uncertainty. In typical single-mode fibres, attenuation imposes a range limit of less than 30km, for resolutions in the order of 1-2 meters. An interesting improvement in this performance can be considered by using distributed amplification along the fibre [1]. Distributed amplification allows having a more homogeneous signal power along the sensing fibre, which also enables reducing the signal power at the input and therefore avoiding nonlinearities. However, in long structures (≥ 50 km), plain distributed amplification does not perfectly compensate the losses and significant power variations along the fibre are to be expected, leading to inevitable limitations in the measurements. From this perspective, it is simple to understand intuitively that the best possible solution for distributed sensors would be offered by a virtually transparent fibre, i.e. a fibre exhibiting effectively zero attenuation in the spectral region of the pulse. In addition, it can be shown that lossless transmission is the working point that allows the minimization of the amplified spontaneous emission (ASE) noise build-up.

Original languageEnglish
Title of host publication2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
PublisherIEEE
Number of pages1
ISBN (Electronic)978-1-4577-0532-8
ISBN (Print)978-1-4577-0533-5
DOIs
Publication statusPublished - Sep 2011
Event2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference - Munich, Germany
Duration: 22 May 201126 May 2011

Conference

Conference2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference
Abbreviated titleCLEO EUROPE/EQEC 2011
CountryGermany
CityMunich
Period22/05/1126/05/11

Fingerprint Dive into the research topics of 'Ultra-long range distributed fibre sensing using virtually transparent propagation'. Together they form a unique fingerprint.

  • Research Output

    • 7 Conference publication
    • 1 Other chapter contribution

    Activated escape from polarization pulling in fibre Raman amplifiers

    Sergeyev, S. & Turitsyn, S., Sep 2011, 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011. IEEE, 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference publication

  • Broadly tunable CW green-to-red laser source based on frequency doubling of a quantum-dot external cavity diode laser in a PPKTP waveguide

    Fedorova, K. A., Cataluna, M. A., Battle, P. R., Krestnikov, I. L., Livshits, D. A. & Rafailov, E. U., 2011, 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011. IEEE, 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference publication

  • Incoherent fibre supercontinuum generation for all-optical random number generation

    Wetzel, B., Larger, L., Dudley, J. M., Blow, K. J. & Turitsyn, S. K., 2011, 2011 conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC. IEEE, 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference publication

    Open Access
    File
  • Cite this

    Gonzalez-Herraez, M., Martin-Lopez, S., Alcon-Camas, M., Corredera, P., Thévenaz, L., & Ania-Castañón, J. D. (2011). Ultra-long range distributed fibre sensing using virtually transparent propagation. In 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011 IEEE. https://doi.org/10.1109/CLEOE.2011.5943077