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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 27, Iss. 19 — Oct. 1, 2009
  • pp: 4250–4255

Sensor Multiplexing Based on a Finite-Impulse Response Lattice of Unbalanced Interferometers

Avishay Eyal, Ariel Oni, Ori Weinstein, Amit Isseroff, Erez Raanan, and Moshe Tur

Journal of Lightwave Technology, Vol. 27, Issue 19, pp. 4250-4255 (2009)


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Abstract

A new approach for multiplexing interferometric fiber optic sensors is described and studied. The approach is based on a lattice of unbalanced Mach–Zehnder interferometers. This configuration is inherently low-loss and can be implemented and deployed in a simple manner. The signals from the cascaded sensors are extracted from the measured data via a layer peeling algorithm. A fifth-order polarimetric implementation of the proposed multiplexing technique has been constructed and characterized. The third sensor was buried in a sandbox while the rest of the sensors were spooled on a bobbin. The system successfully separated and monitored the pressure variations in the different sensors with minor crosstalk.

© 2009 IEEE

Citation
Avishay Eyal, Ariel Oni, Ori Weinstein, Amit Isseroff, Erez Raanan, and Moshe Tur, "Sensor Multiplexing Based on a Finite-Impulse Response Lattice of Unbalanced Interferometers," J. Lightwave Technol. 27, 4250-4255 (2009)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-27-19-4250

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