A comprehensive study of fiber optic sensors based on a dual ring resonator system has been conducted. A new theoretical model is established for a single fiber optic ring resonator. The performance of fiber optic sensors based on the dual ring resonator system is then analyzed, based on this model. The best configuration for the dual ring resonator system is determined in terms of the shot-noise-limited minimum detectable phase change, as well as the environmental stability when polarization crosstalk is present. The relationship between the coherence length of semiconductor light sources and the resonator loop lengths is investigated, with the aim of eliminating phase noise effects. Moreover, the effect of length mismatch between the two resonator loops is discussed. Finally, the fundamental output characteristics of fiber optic sensors based on dual ring resonator system are verified experimentally. Some recommendations are also given for further possible improvement.
Library of Congress Subject Headings
Fiber optics; Optical detectors
Fan, Chenjun, "Fiber optic sensor based on dual ring resonator system" (1992). Thesis. Rochester Institute of Technology. Accessed from
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