Enhancement of wavelength detection accuracy in fiber Bragg grating sensors by using a spectrum correlation technique

J. M. Gong; C. C. Chan; Wei Jin; J. M.K. MacAlpine; M. Zhang; Y. B. Liao

doi:10.1109/OFS.2002.1000525

Enhancement of wavelength detection accuracy in fiber Bragg grating sensors by using a spectrum correlation technique

J. M. Gong, C. C. Chan, Wei Jin, J. M.K. MacAlpine, M. Zhang, Y. B. Liao

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

4 Citations (Scopus)

Abstract

A digital post-processing technique based on spectrum correlation is developed and applied to determining the Bragg wavelength shift accuracy in fiber Bragg grating (FBG) sensors. Theoretical analysis shows that the enhancement factor is proportional to the square root of the number of the independent sampling points within the 3d B bandwidth of the FBG. A wavelength detection accuracy of better than 1 pm in terms of standard deviation was experimentally demonstrated, representing an enhancement factor of 7.3 over the conventional peak detection technique. This technique may also be used for applications such as white light interferometer sensors where the interferometric pattern shifts with applied measurand while the shape of the pattern remains unchanged.

Original language	English
Title of host publication	2002 15th Optical Fiber Sensors Conference Technical Digest, OFS 2002
Publisher	IEEE
Pages	155-158
Number of pages	4
ISBN (Electronic)	0780372891, 9780780372894
DOIs	https://doi.org/10.1109/OFS.2002.1000525
Publication status	Published - 1 Jan 2002
Event	15th Optical Fiber Sensors Conference Technical Digest, OFS 2002 - Hilton Portland, Portland, United States Duration: 6 May 2002 → 10 May 2002

Conference

Conference	15th Optical Fiber Sensors Conference Technical Digest, OFS 2002
Country/Territory	United States
City	Portland
Period	6/05/02 → 10/05/02

ASJC Scopus subject areas

Hardware and Architecture
Electrical and Electronic Engineering

More information

10.1109/OFS.2002.1000525

Cite this

@inproceedings{660290f34faa49f587996afe386d3198,

title = "Enhancement of wavelength detection accuracy in fiber Bragg grating sensors by using a spectrum correlation technique",

abstract = "A digital post-processing technique based on spectrum correlation is developed and applied to determining the Bragg wavelength shift accuracy in fiber Bragg grating (FBG) sensors. Theoretical analysis shows that the enhancement factor is proportional to the square root of the number of the independent sampling points within the 3d B bandwidth of the FBG. A wavelength detection accuracy of better than 1 pm in terms of standard deviation was experimentally demonstrated, representing an enhancement factor of 7.3 over the conventional peak detection technique. This technique may also be used for applications such as white light interferometer sensors where the interferometric pattern shifts with applied measurand while the shape of the pattern remains unchanged.",

author = "Gong, {J. M.} and Chan, {C. C.} and Wei Jin and MacAlpine, {J. M.K.} and M. Zhang and Liao, {Y. B.}",

year = "2002",

month = jan,

day = "1",

doi = "10.1109/OFS.2002.1000525",

language = "English",

pages = "155--158",

booktitle = "2002 15th Optical Fiber Sensors Conference Technical Digest, OFS 2002",

publisher = "IEEE",

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note = "15th Optical Fiber Sensors Conference Technical Digest, OFS 2002 ; Conference date: 06-05-2002 Through 10-05-2002",

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Gong, JM, Chan, CC, Jin, W, MacAlpine, JMK, Zhang, M & Liao, YB 2002, Enhancement of wavelength detection accuracy in fiber Bragg grating sensors by using a spectrum correlation technique. in 2002 15th Optical Fiber Sensors Conference Technical Digest, OFS 2002., 1000525, IEEE, pp. 155-158, 15th Optical Fiber Sensors Conference Technical Digest, OFS 2002, Portland, United States, 6/05/02. https://doi.org/10.1109/OFS.2002.1000525

Enhancement of wavelength detection accuracy in fiber Bragg grating sensors by using a spectrum correlation technique. / Gong, J. M.; Chan, C. C.; Jin, Wei et al.
2002 15th Optical Fiber Sensors Conference Technical Digest, OFS 2002. IEEE, 2002. p. 155-158 1000525.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AU - Zhang, M.

AU - Liao, Y. B.

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AB - A digital post-processing technique based on spectrum correlation is developed and applied to determining the Bragg wavelength shift accuracy in fiber Bragg grating (FBG) sensors. Theoretical analysis shows that the enhancement factor is proportional to the square root of the number of the independent sampling points within the 3d B bandwidth of the FBG. A wavelength detection accuracy of better than 1 pm in terms of standard deviation was experimentally demonstrated, representing an enhancement factor of 7.3 over the conventional peak detection technique. This technique may also be used for applications such as white light interferometer sensors where the interferometric pattern shifts with applied measurand while the shape of the pattern remains unchanged.

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BT - 2002 15th Optical Fiber Sensors Conference Technical Digest, OFS 2002

PB - IEEE

T2 - 15th Optical Fiber Sensors Conference Technical Digest, OFS 2002

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ER -

Enhancement of wavelength detection accuracy in fiber Bragg grating sensors by using a spectrum correlation technique

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