Mandatory Fields

Authors

Poeggel, S,Tosi, D,Leen, G,Lewis, E,Jaroszewicz, LR

Conference Title

FIFTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS

Title of Paper

Fiber-optic extrinsic FPI/FBG sensor for temperature-compensated pressure measurement in medical applications

Year

2013

Month

January

Status

Published

Peer Reviewed

Times Cited

()

Optional Fields

Search Keyword

Optical fiber sensor Fabry-Perot interferometer (FPI) FPI sensor fiber Bragg grating (FBG) FBG sensor fiber optic pressure sensor (FOPS) medical sensor PEROT INTERFEROMETRIC SENSORS

Editors

Start Page

End Page

Location

Start Date

End Date

Abstract

A combined optical fiber pressure/temperature sensing system based on low-finesse extrinsic Fabry-Perot interferometer (EFPI) in conjunction with a fiber Bragg grating (FBG) for biomedical measurement applications is presented. The sensing probe has 200 mu m outer diameter, and is biocompatible, meeting the requirements for the most demanding biomedical applications. High accuracy (<1mmHg) is achieved by means of fiber polishing and diaphragm etching in hydrofluoric acid, and optimizing the sensitivity to >1nm/kPa. A white light interrogation system based on spectrometric analysis has been developed which implements several pressure detection algorithms. A measurement campaign has been carried out to validate the proposed system, showing 1mmHg accuracy, air-gap compression linearity, and temperature compensation.

Funded By

URL

DOI Link

10.1117/12.2025483

Grant Details

Funding Body

Grant Details