Electric-arc-induced strength-controllable weak polarization mode coupling in polarization maintaining fiber

Abstract

An electric-arc-based scheme to generate strength-controllable weak polarization mode coupling (PMC) points in polarization maintaining fiber (PMF) is described. The resulting PMC strengths can be readily controlled to be in the very weak range of -60 to -40 dB. In this range, excellent mechanical strength combined with high return loss is achieved. An experimental quasi-distributed temperature sensor is formed by three separate PMC points in a single PMF using the electric arc method.

Review of Optical Fiber Sensor Network Technology Based on White Light Interferometry

“…Other types of network topologies are constructed by means of linear sensor arrays. In fact, there have been many such examples, and several typical white light interferometer demodulators can be used to construct this sensor array [20][21][22][23][24]. An example of a fiber-optic white light interferometric linear fiber sensor array based on the hetero-core fiber cascade structure, as shown in Fig.…”