Characterization of a fibre grating laser-based hydrophone for detection of high frequency medical ultrasound: A comparison with PVDF membrane hydrophone

S. T. Lau; S. Y. Liu; Hwa Yaw Tam; H. L W Chan

doi:10.1080/00150190600689597

Characterization of a fibre grating laser-based hydrophone for detection of high frequency medical ultrasound: A comparison with PVDF membrane hydrophone

S. T. Lau, S. Y. Liu, Hwa Yaw Tam, H. L W Chan

The Hong Kong Polytechnic University

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

3 Citations (Scopus)

Abstract

An ultrasonic hydrophone with a dual polarization distributed Bragg reflector (DBR) fibre laser as the sensing element is described, and its application to the characterization of high frequency ultrasonic field is demonstrated. The principle of the hydrophone is based on the detection of ultrasonically modulated birefringence of the fibre laser output. The generated upper and lower sideband frequency components can be used to determine the frequency and amplitude of the ultrasonic field. It has been found that the performance of the fibre grating laser-based hydrophone, including linearity, sensitivity and frequency response, compares favorably with that of commercial PVDF membrane hydrophone. It suggests that this type of hydrophone can provide a practical alternative to piezoelectric hydrophone technology.

Original language	English
Pages (from-to)	115-120
Number of pages	6
Journal	Ferroelectrics
Volume	333
DOIs	https://doi.org/10.1080/00150190600689597
Publication status	Published - 1 May 2006

Keywords

Fibre Bragg gratings
Polyvinylidene fluoride
Ultrasonic hydrophone

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/00150190600689597

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title = "Characterization of a fibre grating laser-based hydrophone for detection of high frequency medical ultrasound: A comparison with PVDF membrane hydrophone",

abstract = "An ultrasonic hydrophone with a dual polarization distributed Bragg reflector (DBR) fibre laser as the sensing element is described, and its application to the characterization of high frequency ultrasonic field is demonstrated. The principle of the hydrophone is based on the detection of ultrasonically modulated birefringence of the fibre laser output. The generated upper and lower sideband frequency components can be used to determine the frequency and amplitude of the ultrasonic field. It has been found that the performance of the fibre grating laser-based hydrophone, including linearity, sensitivity and frequency response, compares favorably with that of commercial PVDF membrane hydrophone. It suggests that this type of hydrophone can provide a practical alternative to piezoelectric hydrophone technology.",

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N2 - An ultrasonic hydrophone with a dual polarization distributed Bragg reflector (DBR) fibre laser as the sensing element is described, and its application to the characterization of high frequency ultrasonic field is demonstrated. The principle of the hydrophone is based on the detection of ultrasonically modulated birefringence of the fibre laser output. The generated upper and lower sideband frequency components can be used to determine the frequency and amplitude of the ultrasonic field. It has been found that the performance of the fibre grating laser-based hydrophone, including linearity, sensitivity and frequency response, compares favorably with that of commercial PVDF membrane hydrophone. It suggests that this type of hydrophone can provide a practical alternative to piezoelectric hydrophone technology.

AB - An ultrasonic hydrophone with a dual polarization distributed Bragg reflector (DBR) fibre laser as the sensing element is described, and its application to the characterization of high frequency ultrasonic field is demonstrated. The principle of the hydrophone is based on the detection of ultrasonically modulated birefringence of the fibre laser output. The generated upper and lower sideband frequency components can be used to determine the frequency and amplitude of the ultrasonic field. It has been found that the performance of the fibre grating laser-based hydrophone, including linearity, sensitivity and frequency response, compares favorably with that of commercial PVDF membrane hydrophone. It suggests that this type of hydrophone can provide a practical alternative to piezoelectric hydrophone technology.

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Characterization of a fibre grating laser-based hydrophone for detection of high frequency medical ultrasound: A comparison with PVDF membrane hydrophone

Abstract

Keywords

ASJC Scopus subject areas

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