Chenjun Fan


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

Publication Date


Document Type



Not listed


Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in December 2013. Physical copy available through RIT's The Wallace Library at: TA1800 .F36 1992


RIT – Main Campus