A Design Method for Angularly Nonunifom Refractive Index Polarization-Maintaining Optical Fibers with Low Dispersion over a Wide Spectral Range

摘要

1. INTRODUCTIONSingle-mode optical fibers which maintain the state of linear polarization and provide the minimum signal distortion in low-loss spectral region are desirable for long-distance and large-capaclty communication. In order to realize such fibers, the polarlzation-malntalnlng optical fibers, It is