Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper ch_1_4

Twin Multicore Fiber Interferometers for Precision Sensing

Not Accessible

Your library or personal account may give you access

Abstract

Multicore fiber (MCF) sensors is an emerging research field. MCFs provide new alternatives for the development of innovative sensing devices whose performance cannot be achieved with conventional optical fibers. In general, MCFs have diameters similar to that of a standard single mode fiber (SMF) and have multiple individual cores sharing a common cladding. So far, a number of sensors based on MCF have been reported. Our group, for example, has reported different sensors based on single MCF interferometers that consist of a piece of MCF spliced to SMF [1,2]. One key issue of such sensors is the difficulty of discriminating the target parameter (measurand) from unwanted external perturbations that may be present during the use of the sensor. To address this issue, here, we introduce an innovative architecture that consists of two identical (twin) MCF interferometers in series that are interrogated in reflection mode, see Fig. 1. Our architecture has important advantages. As there are two MCF interferometers, one can be used as a reference or filter and the other as a sensor [3]. The signal of our twin MCF interferometers is the multiplication of individual reflection spectra. Consequently, their reflection exhibits a single narrow peak whose position in wavelength is easy to track. We have observed that periodic bending (vibrations) in one them resulted in prominent shifts in the reflection spectrum.

© 2019 IEEE

PDF Article
More Like This
Multicore fiber space-division multiplexed reflectometer and interferometer for distributed vibration sensing

Zhiyong Zhao, Ming Tang, Liang Wang, Nan Guo, Hwa Yaw Tam, and Chao Lu
WD1 Optical Fiber Sensors (OFS) 2018

Multicore Fiber Sensors

Joel Villatoro, Oskar Arrizabalaga, Enrique Antonio-Lopez, Joseba Zubia, and Idurre Saez de Ocáriz
Th3H.1 Optical Fiber Communication Conference (OFC) 2017

Directional bending sensor based on asymmetrical multicore fiber Mach–Zehnder interferometer

Weijuan Chen, Hanqing Lin, Zhihao Chen, and Hui Li
JW4A.4 Information Storage System and Technology (ISST) 2019

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved