Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities

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

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Abstract

We report on the design and preliminary testing of an interferometric interrogator capable of large-scale time-division multiplexing of FBG sensors. The scheme employs a passive algorithm for phase demodulation, allowing changes in FBG sensor reflected wavelengths to be calculated instantaneously upon arrival, and incorporates a technique for identification of initial absolute sensor wavelengths in order to overcome the measurement ambiguity associated with interferometric schemes. The proposed system will allow for high-speed interrogation of large-scale FBG sensor arrays with interferometric resolution and the capability for dynamic, static, and absolute FBG wavelength measurement.
Original languageEnglish
Title of host publicationSPIE Proceedings Vol. 8421
Subtitle of host publicationOFS2012 22nd International Conference on Optical Fiber Sensors
EditorsYanbiao Liao, Hoilut Ho, Wei Jin, David D. Sampson, Ryozo Yamauchi, Youngjoo Chung, Kentaro Nakamura, Yunjiang Rao
Number of pages4
DOIs
Publication statusPublished - 4 Oct 2012
Event22nd International Conference on Optical Fiber Sensors - Beijing, China
Duration: 15 Oct 201219 Oct 2012

Conference

Conference22nd International Conference on Optical Fiber Sensors
CountryChina
CityBeijing
Period15/10/1219/10/12

Fingerprint

Wavelength
Sensors
Time division multiplexing
Sensor arrays
Demodulation
Testing

Keywords

  • interferometric time division
  • FBG interrogator
  • multiplexer
  • interferometric interrogator

Cite this

Orr, P., Paterson, A., & Niewczas, P. (2012). Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities. In Y. Liao, H. Ho, W. Jin, D. D. Sampson, R. Yamauchi, Y. Chung, K. Nakamura, ... Y. Rao (Eds.), SPIE Proceedings Vol. 8421: OFS2012 22nd International Conference on Optical Fiber Sensors https://doi.org/10.1117/12.974511
Orr, Philip ; Paterson, Alan ; Niewczas, Pawel. / Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities. SPIE Proceedings Vol. 8421: OFS2012 22nd International Conference on Optical Fiber Sensors. editor / Yanbiao Liao ; Hoilut Ho ; Wei Jin ; David D. Sampson ; Ryozo Yamauchi ; Youngjoo Chung ; Kentaro Nakamura ; Yunjiang Rao. 2012.
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abstract = "We report on the design and preliminary testing of an interferometric interrogator capable of large-scale time-division multiplexing of FBG sensors. The scheme employs a passive algorithm for phase demodulation, allowing changes in FBG sensor reflected wavelengths to be calculated instantaneously upon arrival, and incorporates a technique for identification of initial absolute sensor wavelengths in order to overcome the measurement ambiguity associated with interferometric schemes. The proposed system will allow for high-speed interrogation of large-scale FBG sensor arrays with interferometric resolution and the capability for dynamic, static, and absolute FBG wavelength measurement.",
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Orr, P, Paterson, A & Niewczas, P 2012, Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities. in Y Liao, H Ho, W Jin, DD Sampson, R Yamauchi, Y Chung, K Nakamura & Y Rao (eds), SPIE Proceedings Vol. 8421: OFS2012 22nd International Conference on Optical Fiber Sensors. 22nd International Conference on Optical Fiber Sensors, Beijing, China, 15/10/12. https://doi.org/10.1117/12.974511

Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities. / Orr, Philip; Paterson, Alan; Niewczas, Pawel.

SPIE Proceedings Vol. 8421: OFS2012 22nd International Conference on Optical Fiber Sensors. ed. / Yanbiao Liao; Hoilut Ho; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao. 2012.

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

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AB - We report on the design and preliminary testing of an interferometric interrogator capable of large-scale time-division multiplexing of FBG sensors. The scheme employs a passive algorithm for phase demodulation, allowing changes in FBG sensor reflected wavelengths to be calculated instantaneously upon arrival, and incorporates a technique for identification of initial absolute sensor wavelengths in order to overcome the measurement ambiguity associated with interferometric schemes. The proposed system will allow for high-speed interrogation of large-scale FBG sensor arrays with interferometric resolution and the capability for dynamic, static, and absolute FBG wavelength measurement.

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Orr P, Paterson A, Niewczas P. Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities. In Liao Y, Ho H, Jin W, Sampson DD, Yamauchi R, Chung Y, Nakamura K, Rao Y, editors, SPIE Proceedings Vol. 8421: OFS2012 22nd International Conference on Optical Fiber Sensors. 2012 https://doi.org/10.1117/12.974511