2013
DOI: 10.1063/1.4816329
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Tip-sensitive all-silica fiber-optic Fabry–Perot ultrasonic hydrophone for charactering high intensity focused ultrasound fields

Abstract: This Letter reports on a tip-sensitive all-silica fiber-optic Fabry–Perot (TAFOFP) ultrasonic hydrophone for measuring high intensity focused ultrasound (HIFU) fields. The all-silica fiber-optic structure ensures that the TAFOFP ultrasonic hydrophone can withstand HIFU fields and the tip-sensitive configuration ensures that the TAFOFP ultrasonic hydrophone can achieve a high spatial resolution of 125 μm. The experimental results have shown that the TAFOFP ultrasonic hydrophone could stably measure the peak pos… Show more

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Cited by 18 publications
(11 citation statements)
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“…Compared with traditional sensors based on electricity, optical fiber sensor has a series of advantages, such as light weight, high sensitivity, good resistance to electromagnetic interference, excellent electrical insulation and safety performance [1]. So far, optical fiber sensor has been widely used to monitor strain [2,3], temperature [4][5][6], refractive index [7], humidity [8], acceleration [9], ultrasound [10,11], displacement [12] and other physical quantities. According to whether occur light interferes or not, optical fiber sensors can be divided into interferometric optical fiber sensors and non-interferometric optical fiber sensors, of which interferometric optical fiber sensors normally have higher accuracy [13][14][15].…”
Section: Introductionmentioning
confidence: 99%
“…Compared with traditional sensors based on electricity, optical fiber sensor has a series of advantages, such as light weight, high sensitivity, good resistance to electromagnetic interference, excellent electrical insulation and safety performance [1]. So far, optical fiber sensor has been widely used to monitor strain [2,3], temperature [4][5][6], refractive index [7], humidity [8], acceleration [9], ultrasound [10,11], displacement [12] and other physical quantities. According to whether occur light interferes or not, optical fiber sensors can be divided into interferometric optical fiber sensors and non-interferometric optical fiber sensors, of which interferometric optical fiber sensors normally have higher accuracy [13][14][15].…”
Section: Introductionmentioning
confidence: 99%
“…Previously reported fiber optic-based ultrasonic sensors mainly include intensity modulation of fiber optic sensors (IMFOS), interferometric fiber optic sensors (IFOS), and fiber optic grating sensors (FOGS) [ 10 ]. Although IMFOS have shown high sensitivity and broadband frequency response in the detection of UW, they still have some shortcomings, such as poor stability of the UW detection and low signal-to-noise ratio (SNR) and single-point detection [ 11 , 12 ].…”
Section: Introductionmentioning
confidence: 99%
“…However, when the length of the grating is larger than the ultrasonic wavelength, the sensitivity of the sensor to detect ultrasonic waves (UWs) will reduce dramatically [ 12 ], which hardly meets the requirements of ultrasonic imaging of seismic physics SPMs. According to the interference mechanism, fiber-optic interferometric ultrasonic sensors are commonly based on Mach–Zehnder interference (MZI) [ 13 ], Fabry–Perot interference (FPI) [ 14 ], Michelson interference (MI) [ 15 ] and Sagnac interference (SI) [ 16 ]. Among these, FPI is the most widely used interference for ultrasonic detection and imaging, which has the main advantages of detecting distance, signal-noise ratio (SNR) and response frequency band (a more compact structure) [ 17 , 18 , 19 ].…”
Section: Introductionmentioning
confidence: 99%