High frequency ultrasound measurement using fiber grating laser hydrophone

Li Yang Shao; Sien Ting Lau; Xinyong Dong; Yong Jun Wang; Shun Yee Liu; Hwa Yaw Tam; Helen Lai Wa Chan; Chao Lu

doi:10.1117/12.802861

High frequency ultrasound measurement using fiber grating laser hydrophone

Li Yang Shao, Sien Ting Lau, Xinyong Dong, Yong Jun Wang, Shun Yee Liu, Hwa Yaw Tam, Helen Lai Wa Chan, Chao Lu

Research output: Journal article publication › Conference article › Academic research › peer-review

Abstract

A fiber laser hydrophone system for measuring tone-burst ultrasonic signals up to 40 MHz is developed. The hydrophone consists of a cladding-etched dual polarization distributed Bragg reflector (DBR) fiber laser. The sensing mechanism is based on the modulation of the fiber laser's birefringence induced by the ultrasonic pressure. The ultrasonic signal waveform is demodulated using an FM-DEM (frequency modulation-demodulation) circuit and measured with a digital oscilloscope. Incorporating the time delay measurement of ultrasonic signal, this fiber laser hydrophone system achieves a spatial resolution of 37.5 μm at 40 MHz.

Original language	English
Article number	71343U
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7134
DOIs	https://doi.org/10.1117/12.802861
Publication status	Published - 1 Dec 2008
Event	Passive Components and Fiber-based Devices V - Hangzhou, China Duration: 27 Oct 2008 → 30 Oct 2008

Keywords

Fiber grating laser
Fiber optical sensor
Time-domain ultrasonic signal
Ultrasonic hydrophone

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

More information

10.1117/12.802861

Cite this

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title = "High frequency ultrasound measurement using fiber grating laser hydrophone",

abstract = "A fiber laser hydrophone system for measuring tone-burst ultrasonic signals up to 40 MHz is developed. The hydrophone consists of a cladding-etched dual polarization distributed Bragg reflector (DBR) fiber laser. The sensing mechanism is based on the modulation of the fiber laser's birefringence induced by the ultrasonic pressure. The ultrasonic signal waveform is demodulated using an FM-DEM (frequency modulation-demodulation) circuit and measured with a digital oscilloscope. Incorporating the time delay measurement of ultrasonic signal, this fiber laser hydrophone system achieves a spatial resolution of 37.5 μm at 40 MHz.",

keywords = "Fiber grating laser, Fiber optical sensor, Time-domain ultrasonic signal, Ultrasonic hydrophone",

author = "Shao, {Li Yang} and Lau, {Sien Ting} and Xinyong Dong and Wang, {Yong Jun} and Liu, {Shun Yee} and Tam, {Hwa Yaw} and Chan, {Helen Lai Wa} and Chao Lu",

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AU - Shao, Li Yang

AU - Lau, Sien Ting

AU - Dong, Xinyong

AU - Wang, Yong Jun

AU - Liu, Shun Yee

AU - Tam, Hwa Yaw

AU - Chan, Helen Lai Wa

AU - Lu, Chao

PY - 2008/12/1

Y1 - 2008/12/1

N2 - A fiber laser hydrophone system for measuring tone-burst ultrasonic signals up to 40 MHz is developed. The hydrophone consists of a cladding-etched dual polarization distributed Bragg reflector (DBR) fiber laser. The sensing mechanism is based on the modulation of the fiber laser's birefringence induced by the ultrasonic pressure. The ultrasonic signal waveform is demodulated using an FM-DEM (frequency modulation-demodulation) circuit and measured with a digital oscilloscope. Incorporating the time delay measurement of ultrasonic signal, this fiber laser hydrophone system achieves a spatial resolution of 37.5 μm at 40 MHz.

AB - A fiber laser hydrophone system for measuring tone-burst ultrasonic signals up to 40 MHz is developed. The hydrophone consists of a cladding-etched dual polarization distributed Bragg reflector (DBR) fiber laser. The sensing mechanism is based on the modulation of the fiber laser's birefringence induced by the ultrasonic pressure. The ultrasonic signal waveform is demodulated using an FM-DEM (frequency modulation-demodulation) circuit and measured with a digital oscilloscope. Incorporating the time delay measurement of ultrasonic signal, this fiber laser hydrophone system achieves a spatial resolution of 37.5 μm at 40 MHz.

KW - Fiber grating laser

KW - Fiber optical sensor

KW - Time-domain ultrasonic signal

KW - Ultrasonic hydrophone

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M3 - Conference article

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VL - 7134

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 71343U

T2 - Passive Components and Fiber-based Devices V

Y2 - 27 October 2008 through 30 October 2008

ER -

High frequency ultrasound measurement using fiber grating laser hydrophone

Abstract

Keywords

ASJC Scopus subject areas

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