Highly Scalable Amplified Hybrid TDM/DWDM Array Architecture for Interferometric Fiber-Optic Sensor Systems

We present a distributed amplified hybrid dense wavelength division multiplexing (DWDM) and time division multiplexing (TDM) array architecture for large scale interferometric fiber-optic sensor array systems. This architecture employs a distributed Erbium doped fiber amplifier (EDFA) scheme to decr...

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Bibliographic Details
Published in:Journal of lightwave technology 2013-03, Vol.31 (6), p.882-888
Main Authors: Yi Liao, Austin, E., Nash, P. J., Kingsley, S. A., Richardson, D. J.
Format: Article
Language:English
Subjects:
Amplified array
Applied sciences
Arrays
Circuit properties
distributed amplification
Electric, optical and optoelectronic circuits
Electronics
erbium-doped fiber amplifiers (EDFAs)
Exact sciences and technology
hybrid multiplexing
Information, signal and communications theory
Integrated optics. Optical fibers and wave guides
interferometric fiber-optics sensors
large scale
Multiplexing
noise aliasing
Optical amplifiers
Optical and optoelectronic circuits
Optical fiber amplifiers
Optical fiber sensors
Organization and planning of networks (techniques and equipments)
phase resolution
Services and terminals of telecommunications
Signal and communications theory
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Telemetry. Remote supervision. Telewarning. Remote control
Time division multiplexing
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Description
Summary:We present a distributed amplified hybrid dense wavelength division multiplexing (DWDM) and time division multiplexing (TDM) array architecture for large scale interferometric fiber-optic sensor array systems. This architecture employs a distributed Erbium doped fiber amplifier (EDFA) scheme to decrease the distribution loss among multiplexed wavelengths, and employs TDM at each wavelength to increase the total number of sensors that can be supported. The first experimental demonstration of this system is reported including results which show the potential for multiplexing and interrogating up to 4096 sensors using a single telemetry fiber pair with good system performance. The number of interrogation sensors could be further increased by increasing the number of wavelength channels. These architectures would be of great importance in the application of systems requiring very large number of sensors with limited telemetry cabling.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2012.2234084