Analysis of π -phase-shifted fiber bragg gratings for ultrasonic detection

Tongqing Liu; Ming Han

doi:10.1109/JSEN.2012.2189383

Analysis of π -phase-shifted fiber bragg gratings for ultrasonic detection

Tongqing Liu, Ming Han

Electrical & Computer Engineering

Research output: Contribution to journal › Article › peer-review

118 Scopus citations

Abstract

Using numerical simulations, we investigated the responses of the π-phase-shifted fiber Bragg gratings (πFBGs) impinged by pressure ultrasonic waves. The effect of the grating length, grating refractive index modification depth, and ultrasonic frequency on the wavelength sensitivity and intensity sensitivity of the πFBG ultrasonic sensor for ultrasonic waves of different wavelengths was analyzed. The directivity of a πFBG sensor was also studied. Our analysis revealed several unique πFBG response characteristics and will be useful in the design and optimization of fiber-optic ultrasonic sensors that use a πFBG as the sensing element.

Original language	English (US)
Article number	6165325
Pages (from-to)	2368-2373
Number of pages	6
Journal	IEEE Sensors Journal
Volume	12
Issue number	7
DOIs	https://doi.org/10.1109/JSEN.2012.2189383
State	Published - 2012

Keywords

Fiber Bragg grating (FBG)
fiber-optic sensors
pressure wave
ultrasonic detection

ASJC Scopus subject areas

Instrumentation
Electrical and Electronic Engineering

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10.1109/JSEN.2012.2189383

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title = "Analysis of π -phase-shifted fiber bragg gratings for ultrasonic detection",

abstract = "Using numerical simulations, we investigated the responses of the π-phase-shifted fiber Bragg gratings (πFBGs) impinged by pressure ultrasonic waves. The effect of the grating length, grating refractive index modification depth, and ultrasonic frequency on the wavelength sensitivity and intensity sensitivity of the πFBG ultrasonic sensor for ultrasonic waves of different wavelengths was analyzed. The directivity of a πFBG sensor was also studied. Our analysis revealed several unique πFBG response characteristics and will be useful in the design and optimization of fiber-optic ultrasonic sensors that use a πFBG as the sensing element.",

keywords = "Fiber Bragg grating (FBG), fiber-optic sensors, pressure wave, ultrasonic detection",

author = "Tongqing Liu and Ming Han",

note = "Funding Information: Manuscript received November 17, 2011; revised February 22, 2012; accepted February 23, 2012. Date of publication March 6, 2012; date of current version May 24, 2012. This work was supported in part by the U.S. Office of Naval Research under Grant N000141110262 and Grant N000141110499. The associate editor coordinating the review of this paper and approving it for publication was Prof. Julian C. C. Chan.",

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doi = "10.1109/JSEN.2012.2189383",

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PY - 2012

Y1 - 2012

N2 - Using numerical simulations, we investigated the responses of the π-phase-shifted fiber Bragg gratings (πFBGs) impinged by pressure ultrasonic waves. The effect of the grating length, grating refractive index modification depth, and ultrasonic frequency on the wavelength sensitivity and intensity sensitivity of the πFBG ultrasonic sensor for ultrasonic waves of different wavelengths was analyzed. The directivity of a πFBG sensor was also studied. Our analysis revealed several unique πFBG response characteristics and will be useful in the design and optimization of fiber-optic ultrasonic sensors that use a πFBG as the sensing element.

AB - Using numerical simulations, we investigated the responses of the π-phase-shifted fiber Bragg gratings (πFBGs) impinged by pressure ultrasonic waves. The effect of the grating length, grating refractive index modification depth, and ultrasonic frequency on the wavelength sensitivity and intensity sensitivity of the πFBG ultrasonic sensor for ultrasonic waves of different wavelengths was analyzed. The directivity of a πFBG sensor was also studied. Our analysis revealed several unique πFBG response characteristics and will be useful in the design and optimization of fiber-optic ultrasonic sensors that use a πFBG as the sensing element.

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Analysis of π -phase-shifted fiber bragg gratings for ultrasonic detection

Abstract

Keywords

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