Abstract
A new kind of fiber-optic sensor, to our knowledge, is proposed: a chaotic sensor. The sensor is based on a fiber-ring resonator that is optically driven by a train of pulses whose period equals the round-trip delay of the resonator. This sensor exploits the extremely high dependence of chaotic systems on initial conditions to sense several physical parameters (elongation, attenuation, index of refraction). The measured information is encoded in different geometrical characteristics of the chaotic attractor. The proposed sensing scheme has been modeled and simulated. The simulations reveal high potential for this structure as a multiparameter sensor.
Highlights
One of the most famous characteristics of chaos[1] is what is known as the butterfly effect or, in technical language, sensitive dependence on initial conditions
This paper proposes the use of a chaotic fiber-ring resonator as a sensor for measuring several physical parameters
Since no interrogation technique has been developed yet, only simulation results will be presented and discussed to evaluate the potential performance of the chaotic sensor
Summary
One of the most famous characteristics of chaos[1] is what is known as the butterfly effect or, in technical language, sensitive dependence on initial conditions. This characteristic accounts for the unpredictability of chaotic systems. It states that extremely small changes in the initial conditions of the system can result in enormous variations of the output. This can be regarded as a problem in most fields but not in sensing. Little work has been carried out using chaos for sensing purposes.[2]
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