Effects of laser intensity noise on polarimetric distributed feedback fibre laser ultrasonic sensor

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

The influence of the relative intensity noise, in particular the relaxation oscillation noise, of a distributed feedback (DFB) fibre laser on the performance of a polarimetric DFB fibre laser ultrasonic sensor is investigated theoretically and experimentally. A novel demodulation algorithm for the DFB fibre laser ultrasonic sensor is used to demodulate the polarization beat frequency and eliminate the effects of the intensity noise completely. The sensing system is demonstrated to demodulate time varying ultrasonic signals at 2.25 MHz and 10 MHz.
LanguageEnglish
Title of host publication26th International Conference on Optical Fiber Sensors
Place of PublicationWashington D.C.
PublisherOptical Society of America
Number of pages4
ISBN (Print)978-1-943580-50-7
DOIs
Publication statusPublished - 24 Sep 2018
Event The 26th International Conference on Optical Fibre Sensors - SwissTech Convention Center, EPFL Campus, Lausanne, Switzerland
Duration: 24 Sep 201828 Sep 2018
Conference number: 26
https://www.ofs26.org/site/OFS-26/page-143739.html

Conference

Conference The 26th International Conference on Optical Fibre Sensors
Abbreviated titleOFS-26
CountrySwitzerland
CityLausanne
Period24/09/1828/09/18
Internet address

Fingerprint

Ultrasonic sensors
Distributed feedback lasers
Fiber lasers
Lasers
Demodulation
Ultrasonics
Polarization

Keywords

  • distributed feedback
  • fibre laser
  • intensity noise

Cite this

Wang, J., Flockhart, G. M. H., & Uttamchandani, D. (2018). Effects of laser intensity noise on polarimetric distributed feedback fibre laser ultrasonic sensor. In 26th International Conference on Optical Fiber Sensors [TuE48] Washington D.C.: Optical Society of America. https://doi.org/10.1364/OFS.2018.TuE48
Wang, Jianfei ; Flockhart, Gordon M. H. ; Uttamchandani, Deepak. / Effects of laser intensity noise on polarimetric distributed feedback fibre laser ultrasonic sensor. 26th International Conference on Optical Fiber Sensors. Washington D.C. : Optical Society of America, 2018.
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title = "Effects of laser intensity noise on polarimetric distributed feedback fibre laser ultrasonic sensor",
abstract = "The influence of the relative intensity noise, in particular the relaxation oscillation noise, of a distributed feedback (DFB) fibre laser on the performance of a polarimetric DFB fibre laser ultrasonic sensor is investigated theoretically and experimentally. A novel demodulation algorithm for the DFB fibre laser ultrasonic sensor is used to demodulate the polarization beat frequency and eliminate the effects of the intensity noise completely. The sensing system is demonstrated to demodulate time varying ultrasonic signals at 2.25 MHz and 10 MHz.",
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author = "Jianfei Wang and Flockhart, {Gordon M. H.} and Deepak Uttamchandani",
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Wang, J, Flockhart, GMH & Uttamchandani, D 2018, Effects of laser intensity noise on polarimetric distributed feedback fibre laser ultrasonic sensor. in 26th International Conference on Optical Fiber Sensors., TuE48, Optical Society of America, Washington D.C., The 26th International Conference on Optical Fibre Sensors , Lausanne, Switzerland, 24/09/18. https://doi.org/10.1364/OFS.2018.TuE48

Effects of laser intensity noise on polarimetric distributed feedback fibre laser ultrasonic sensor. / Wang, Jianfei; Flockhart, Gordon M. H.; Uttamchandani, Deepak.

26th International Conference on Optical Fiber Sensors. Washington D.C. : Optical Society of America, 2018. TuE48.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

TY - GEN

T1 - Effects of laser intensity noise on polarimetric distributed feedback fibre laser ultrasonic sensor

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AU - Uttamchandani, Deepak

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N2 - The influence of the relative intensity noise, in particular the relaxation oscillation noise, of a distributed feedback (DFB) fibre laser on the performance of a polarimetric DFB fibre laser ultrasonic sensor is investigated theoretically and experimentally. A novel demodulation algorithm for the DFB fibre laser ultrasonic sensor is used to demodulate the polarization beat frequency and eliminate the effects of the intensity noise completely. The sensing system is demonstrated to demodulate time varying ultrasonic signals at 2.25 MHz and 10 MHz.

AB - The influence of the relative intensity noise, in particular the relaxation oscillation noise, of a distributed feedback (DFB) fibre laser on the performance of a polarimetric DFB fibre laser ultrasonic sensor is investigated theoretically and experimentally. A novel demodulation algorithm for the DFB fibre laser ultrasonic sensor is used to demodulate the polarization beat frequency and eliminate the effects of the intensity noise completely. The sensing system is demonstrated to demodulate time varying ultrasonic signals at 2.25 MHz and 10 MHz.

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KW - fibre laser

KW - intensity noise

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Wang J, Flockhart GMH, Uttamchandani D. Effects of laser intensity noise on polarimetric distributed feedback fibre laser ultrasonic sensor. In 26th International Conference on Optical Fiber Sensors. Washington D.C.: Optical Society of America. 2018. TuE48 https://doi.org/10.1364/OFS.2018.TuE48