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Wideband Optical Detector of Ultrasound for Medical Imaging Applications

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Proposed fiber-optic acoustical probe.

¹Department of Electrical Engineering and Communication Sciences, University of Central Florida, Orlando, Florida 32816, USA.

|August 21, 2009

Summary

This summary is machine-generated.

This study introduces an optical fiber probe for detecting sound waves. By tuning the critical angle, the probe

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Area of Science:

Optics
Acoustics
Materials Science

Background:

Optical fibers are widely used in sensing applications.
Acoustic detection typically relies on piezoelectric or other mechanical transducers.

Purpose of the Study:

To propose a novel optical fiber probe for acoustical detection.
To demonstrate tunable sensitivity and modulation capabilities for acoustic waves.

Main Methods:

Polishing an optical fiber end face to an angle near the critical angle.
Utilizing optical material dispersion to tune the critical angle.
Investigating phase and amplitude modulation based on critical angle tuning.

Main Results:

The proposed optical fiber probe acts as an acoustical detector.
Probe sensitivity is controllable by tuning the critical angle.
Acoustic waves can induce either phase or amplitude modulation of the optical signal.

Conclusions:

An angled optical fiber end face can function as a sensitive acoustic detector.
Tunable critical angles offer precise control over probe performance.
This method allows for versatile acoustic wave detection and characterization.