28 November 2020 Optical fiber curvature sensor based on polydimethylsiloxane encapsulated Mach–Zehnder interferometer
Paulino Mba Ndong Mangue, Jiajun Shen, Lijun Li
Author Affiliations +
Abstract

An all-optical fiber curvature sensor is proposed, which is composed of a polydimethylsiloxane elastic material encapsulated all-optical fiber Mach–Zehnder interferometer, and its bending characteristics are demonstrated. Our experimental results show that the output spectrum of the sensor is sensitive to the curvature of the bend angle with a result of interferent dip wavelength drift with it. The curvature sensitivity of the sensor presents 205.36  nm/cm  −  1 with 98.27% linearity in the curvature range from 0.03 to 0.08  cm  −  1. The temperature sensitivity is 0.1235  nm  /    °  C in 35°C to 105°C range. This sensor structure also has the advantages of small size, low cost, and easy fabrication, which means it has potential applications in robots, artificial intelligence, aerospace, and so on.

© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2020/$28.00 © 2020 SPIE
Paulino Mba Ndong Mangue, Jiajun Shen, and Lijun Li "Optical fiber curvature sensor based on polydimethylsiloxane encapsulated Mach–Zehnder interferometer," Optical Engineering 59(11), 116111 (28 November 2020). https://doi.org/10.1117/1.OE.59.11.116111
Received: 30 July 2020; Accepted: 4 November 2020; Published: 28 November 2020
Lens.org Logo
CITATIONS
Cited by 1 scholarly publication.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Sensors

Cladding

Optical fibers

Single mode fibers

Fiber optics sensors

Interferometers

Lithium

RELATED CONTENT


Back to Top