Cost-effective solution for phase-OTDR distributed acoustic/vibration sensing

Vasily V. Spirin, Cesar A. López-mercado, Johan Jason, José L. Bueno-escobedo, Patrice Mégret, Marc Wuilpart, Dmitry A. Korobko, Igor O. Zolotovskii, Sergei Sokolovski, Andrei A. Fotiadi, Georg Herink (Editor), Daniel R. Solli, Serge Bielawski (Editor)

Research output: Contribution to journalConference article

Abstract

Self-injection locking - an efficient method to improve the spectral performance of semiconductor lasers without active stabilization - has already demonstrated its high potential for operation with single-longitude-mode fiber lasers. Recently, we demonstrated that self-injection locking of a conventional DFB laser through an external fiber optic ring cavity causes a drastic decrease of the laser linewidth and makes possible its direct application in a phase-sensitive optical time domain reflectometry (φ-OTDR) acoustic sensor system. Detection and localization of dynamic perturbations in the optical fiber were successfully demonstrated at the distance of 9270 m. However, the ability of the system to restore the perturbating frequency spectrum was not quantified. Here, we have evaluated the performance of a φ-OTDR system for acoustic/vibration measurements utilizing a conventional telecom DFB laser self-stabilized through an external PM optical fiber ring resonator. The use of PM fiber components prevents the polarization mode-hopping that is proved to be a major source of the laser instability, resulting in single frequency laser operation with 6 kHz linewidth. The laser diode current and the laser fiber configuration temperature both have been stabilized with accuracies better than 0.3%. All laser components have been placed into a special insulating box to protect the laser from external perturbations. Under these conditions, the typical duration of laser operation in self-maintaining stabilization regime is ~30 minutes. The laser long-term frequency drift is estimated to be less than ~30 MHz/min. This low-cost solution is directly compared with the use of a commercial, ultra-narrow linewidth (~ 100 Hz) fiber laser implemented into the same setup. Both systems are tested for measurement of the frequency of vibration applied to a fiber at a distance of 3500 m. The obtained SNR value higher than 6 dB demonstrates the ability of the DFB laser to be used in distributed measurements of vibrations with frequencies up to 5600 Hz with a spatial resolution of 10 meters.
Original languageEnglish
Article number109030Q
JournalProceedings of SPIE - International Society for Optical Engineering
Volume10903
DOIs
Publication statusPublished - 4 Mar 2019
EventReal-time Measurements, Rogue Phenomena, and Single-Shot Applications IV - San Francisco, United States
Duration: 2 Feb 20197 Feb 2019

Fingerprint

sound waves
Vibrations (mechanical)
Acoustics
Sensing
Vibration
Laser
costs
DFB Laser
Lasers
Costs
Distributed feedback lasers
Linewidth
Fiber Laser
lasers
Fiber lasers
Locking
fiber lasers
Optical Fiber
Semiconductor lasers
injection locking

Bibliographical note

Copyright 2019 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

  • Optical fiber ring resonator
  • Phase-sensitive OTDR
  • Self-injection locking

Cite this

Spirin, V. V., López-mercado, C. A., Jason, J., Bueno-escobedo, J. L., Mégret, P., Wuilpart, M., ... Bielawski, S. (Ed.) (2019). Cost-effective solution for phase-OTDR distributed acoustic/vibration sensing. Proceedings of SPIE - International Society for Optical Engineering, 10903, [109030Q]. https://doi.org/10.1117/12.2509767
Spirin, Vasily V. ; López-mercado, Cesar A. ; Jason, Johan ; Bueno-escobedo, José L. ; Mégret, Patrice ; Wuilpart, Marc ; Korobko, Dmitry A. ; Zolotovskii, Igor O. ; Sokolovski, Sergei ; Fotiadi, Andrei A. ; Herink, Georg (Editor) ; Solli, Daniel R. ; Bielawski, Serge (Editor). / Cost-effective solution for phase-OTDR distributed acoustic/vibration sensing. In: Proceedings of SPIE - International Society for Optical Engineering. 2019 ; Vol. 10903.
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abstract = "Self-injection locking - an efficient method to improve the spectral performance of semiconductor lasers without active stabilization - has already demonstrated its high potential for operation with single-longitude-mode fiber lasers. Recently, we demonstrated that self-injection locking of a conventional DFB laser through an external fiber optic ring cavity causes a drastic decrease of the laser linewidth and makes possible its direct application in a phase-sensitive optical time domain reflectometry (φ-OTDR) acoustic sensor system. Detection and localization of dynamic perturbations in the optical fiber were successfully demonstrated at the distance of 9270 m. However, the ability of the system to restore the perturbating frequency spectrum was not quantified. Here, we have evaluated the performance of a φ-OTDR system for acoustic/vibration measurements utilizing a conventional telecom DFB laser self-stabilized through an external PM optical fiber ring resonator. The use of PM fiber components prevents the polarization mode-hopping that is proved to be a major source of the laser instability, resulting in single frequency laser operation with 6 kHz linewidth. The laser diode current and the laser fiber configuration temperature both have been stabilized with accuracies better than 0.3{\%}. All laser components have been placed into a special insulating box to protect the laser from external perturbations. Under these conditions, the typical duration of laser operation in self-maintaining stabilization regime is ~30 minutes. The laser long-term frequency drift is estimated to be less than ~30 MHz/min. This low-cost solution is directly compared with the use of a commercial, ultra-narrow linewidth (~ 100 Hz) fiber laser implemented into the same setup. Both systems are tested for measurement of the frequency of vibration applied to a fiber at a distance of 3500 m. The obtained SNR value higher than 6 dB demonstrates the ability of the DFB laser to be used in distributed measurements of vibrations with frequencies up to 5600 Hz with a spatial resolution of 10 meters.",
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Spirin, VV, López-mercado, CA, Jason, J, Bueno-escobedo, JL, Mégret, P, Wuilpart, M, Korobko, DA, Zolotovskii, IO, Sokolovski, S, Fotiadi, AA, Herink, G (ed.), Solli, DR & Bielawski, S (ed.) 2019, 'Cost-effective solution for phase-OTDR distributed acoustic/vibration sensing', Proceedings of SPIE - International Society for Optical Engineering, vol. 10903, 109030Q. https://doi.org/10.1117/12.2509767

Cost-effective solution for phase-OTDR distributed acoustic/vibration sensing. / Spirin, Vasily V.; López-mercado, Cesar A.; Jason, Johan; Bueno-escobedo, José L.; Mégret, Patrice; Wuilpart, Marc; Korobko, Dmitry A.; Zolotovskii, Igor O.; Sokolovski, Sergei; Fotiadi, Andrei A.; Herink, Georg (Editor); Solli, Daniel R.; Bielawski, Serge (Editor).

In: Proceedings of SPIE - International Society for Optical Engineering, Vol. 10903, 109030Q, 04.03.2019.

Research output: Contribution to journalConference article

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AU - Spirin, Vasily V.

AU - López-mercado, Cesar A.

AU - Jason, Johan

AU - Bueno-escobedo, José L.

AU - Mégret, Patrice

AU - Wuilpart, Marc

AU - Korobko, Dmitry A.

AU - Zolotovskii, Igor O.

AU - Sokolovski, Sergei

AU - Fotiadi, Andrei A.

AU - Solli, Daniel R.

A2 - Herink, Georg

A2 - Bielawski, Serge

N1 - Copyright 2019 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

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Y1 - 2019/3/4

N2 - Self-injection locking - an efficient method to improve the spectral performance of semiconductor lasers without active stabilization - has already demonstrated its high potential for operation with single-longitude-mode fiber lasers. Recently, we demonstrated that self-injection locking of a conventional DFB laser through an external fiber optic ring cavity causes a drastic decrease of the laser linewidth and makes possible its direct application in a phase-sensitive optical time domain reflectometry (φ-OTDR) acoustic sensor system. Detection and localization of dynamic perturbations in the optical fiber were successfully demonstrated at the distance of 9270 m. However, the ability of the system to restore the perturbating frequency spectrum was not quantified. Here, we have evaluated the performance of a φ-OTDR system for acoustic/vibration measurements utilizing a conventional telecom DFB laser self-stabilized through an external PM optical fiber ring resonator. The use of PM fiber components prevents the polarization mode-hopping that is proved to be a major source of the laser instability, resulting in single frequency laser operation with 6 kHz linewidth. The laser diode current and the laser fiber configuration temperature both have been stabilized with accuracies better than 0.3%. All laser components have been placed into a special insulating box to protect the laser from external perturbations. Under these conditions, the typical duration of laser operation in self-maintaining stabilization regime is ~30 minutes. The laser long-term frequency drift is estimated to be less than ~30 MHz/min. This low-cost solution is directly compared with the use of a commercial, ultra-narrow linewidth (~ 100 Hz) fiber laser implemented into the same setup. Both systems are tested for measurement of the frequency of vibration applied to a fiber at a distance of 3500 m. The obtained SNR value higher than 6 dB demonstrates the ability of the DFB laser to be used in distributed measurements of vibrations with frequencies up to 5600 Hz with a spatial resolution of 10 meters.

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