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Ultrasound II: Endoscopic Ultrasound and FibroScan

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During an ultrasonography procedure, a handheld device called...

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Updated: Mar 15, 2026

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Published on: May 11, 2014

Microfiber Interferometric Sensor for Ultrasound Detection.

Xiuxin Wang^1,2, Jiwen Zhou¹, Shuojian Xiong Zheng¹

¹Medical Electronics and Information Technology Engineering Research Center, Chongqing Engineering Laboratory of Digital Medical Equipment and System, Chongqing University of Posts and Telecommunications, Chongqing 400065, China.

Sensors (Basel, Switzerland)

|March 14, 2026

Summary

This summary is machine-generated.

Multi-mode microfiber interferometric sensors offer superior ultrasonic detection. They maintain waveform integrity and exhibit significantly higher sensitivity and resolution compared to single-mode fiber sensors for ultrasound applications.

Keywords:

imaging and sensing microfiber interferometer ultrasonic detection

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Last Updated: Mar 15, 2026

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Area of Science:

Acoustics
Optical Sensing
Materials Science

Background:

Ultrasonic wave propagation is crucial in various physical environments.
Developing sensitive and high-resolution sensors for ultrasound detection is an ongoing challenge.

Purpose of the Study:

To investigate ultrasonic wave propagation characteristics in solid and liquid media.
To construct and evaluate a novel sensing device for ultrasonic detection.
To compare the performance of multi-mode microfiber and single-mode fiber sensors.

Main Methods:

Setting up ultrasonic fields in diverse environments.
Constructing a specialized sensing experiment device.
Performing comparative analysis of multi-mode microfiber and single-mode fiber interferometric sensors.
Conducting photoacoustic experiments.

Main Results:

Multi-mode microfiber sensors preserve ultrasonic waveform output.
These sensors demonstrate significantly higher sensitivity than single-mode fiber sensors.
A detection limit of approximately 540 Pa and a bandwidth of 5 MHz were achieved.
Photoacoustic experiments showed the microfiber sensor offered ~10x higher resolution.

Conclusions:

Multi-mode microfiber interferometric sensors are effective for ultrasonic detection.
They provide enhanced sensitivity, resolution, and waveform fidelity over single-mode sensors.
The developed sensor shows promise for advanced acoustic sensing applications.