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Updated: Mar 21, 2026

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Published on: May 11, 2014

Current Developments on Optical Feedback Interferometry as an All-Optical Sensor for Biomedical Applications.

Julien Perchoux¹, Adam Quotb², Reza Atashkhooei³

¹LAAS-CNRS, Université de Toulouse, CNRS, INP, 6 AllÃée Emile Monso, 31400 Toulouse, France. julien.perchoux@enseeiht.fr.

Sensors (Basel, Switzerland)

|May 18, 2016

Summary

This summary is machine-generated.

Optical feedback interferometry (OFI) sensors offer contactless, low-cost biosensing. This review highlights OFI

Keywords:

biophotonics biosensors flowmetry metrology optical feedback interferometry vibrometry

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Area of Science:

Biophotonics and Biosensing
Optical Measurement Techniques

Background:

Optical feedback interferometry (OFI) sensors are increasingly adopted in biosensing.
Their contactless nature, low cost, and compactness align with biophotonics trends.

Purpose of the Study:

To review ongoing work applying OFI to diverse in vivo and ex vivo biosensing applications.
To showcase the breadth of opportunities and potential applications of OFI in biosensing.

Main Methods:

Two primary sensing strategies are explored: optical path change measurement and flow monitoring.
Optical path changes involve amplitude reconstruction from interferometric signals.
Flow monitoring utilizes classical Doppler frequency measurements.

Main Results:

Optical path change measurements demonstrated utility for transient pulse detection and large displacement sensing in palliative care for Parkinson's disease.
Doppler-based approaches showed progress in flow-related signal processing for real-time monitoring of non-steady flows, human blood flow, and OFI pressure myography.
Experimental results across various setups confirm the versatility and high accuracy of OFI sensors.

Conclusions:

OFI sensors exhibit wide-ranging capabilities in biosensing.
They serve as enablers for low-cost, all-optical, high-accuracy biomedical applications.
The technique's versatility supports diverse biosensing needs.