Birefringence and dispersion properties of elliptical hollow core optical fiber under hydrostatic pressure

Abstract

Highly birefringent elliptical hollow core optical fiber under hydrostatic pressure is analyzed in this work using finite element method. The combined effects of thermal stress generated during fabrication and external applied stress have been considered. Birefringence increases while group velocity dispersion decreases when the fiber is under hydrostatic pressure. Higher birefringence, lower material dispersion and moderate effective area can make this fiber attractive for under water communication system.

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“…Besides, hollow core photonic band gap fibers can be manufactured with the un-doped silica materials. Comparing with conventional optical fibers, the hollow core photonic band gap fibers have a lot of advantages, such as the low nonlinear degree, low magnetic sensitivity, good temperature stability, and low radiation sensitivity [2]. Therefore the hollow core photonic band gap fiber has potential advantages in the fiber optic gyroscope, and it has been applied to the fiber optic gyroscope at home and abroad [3].…”