Simple method for determining the internal rotation of birefringence axes in polarization-maintaining optical fibers

摘要

A method was reported to determine the internal rotation of the birefringence axes in polarization-maintaining optical fibers. Four types of fibers from five manufacturers are used to test the applicability of the method, and the results show an approximate uniform unidirectional counterclockwise internal rotation or a right screw with different magnitudes. Our experiment indicated that the repeatability and reproducibility of this method are satisfactory, and the simplicity of measurement and hardware requirements for characterizing the optical fiber for high-precision fiber-optic sensing systems made it easy to realize in ordinary laboratories.