Research Study Of Fiber Optic Interferometry At Very Low Frequencies PDF Download

A comprehensive review of fiber-optic interferometry shows that frequency-dependent phenomena affecting fiber-optic interferometric electromagnetic sensors at very low frequencies have been neither adequately understood nor quantitatively described. In addition to the electro-optical and magneto-strictive (or electro-strictive) factors that intrinsically limit transduction, other interactive mechanisms such as skin-depth and mechanical loading are commonly supposed to affect the detection sensitivity of the interferometric sensor. This research study of fiber-optic interferometry consists of the following: a review of fiber-optic interferometry, analyses aimed at understanding the mechanisms and quantifying where possible, their effects, and an investigation of means to reduce their impact on the performance of practical sensor implementations. Additional experimental studies have been planned in an attempt to address these interactive mechanisms, their effects and methods of mitigating them. The experimental studies have been performed on a best efforts basis due to cost and schedule constraints. (Author).