Polarization-maintaining fiber and optical amplifier

摘要

PROBLEM TO BE SOLVED: To suppress coupling between a TE0 m mode and a TM0 m mode without using structural birefringence.;SOLUTION: An optical fiber 1 functions as a cylindrical optical waveguide. The optical fiber 1 has a distribution of thermal expansion coefficients, which is axially symmetric around an axis with values varying in a radial direction that is orthogonal to the axis.;COPYRIGHT: (C)2014,JPO&INPIT