Numerical Analysis of Dispersion and Endlessly Single Mode Property of a Modified Photonic Crystal Fiber Structure

摘要

Photonic crystal fibers(PCF) are more versatile, intriguing and promising than conventional optical fiber. PCFsare divided into two different kinds, the index-guiding PCF and the photonic band-gap (PBG) effect PCF. Inconventional index-guiding PCF, there is a lattice of air holes in the silica background, which surround the core.Light in this fiber is guided through the high index solid silica core by total internal reflection mechanism.Fundamentally different from all high index core conventional photonic crystal fiber, in this paper, we propose anew type of Photonic Crystal Fiber (PCF) structure; where instead of using the air-holes in the cladding region,we use boron doped solid silica rods in order to reduce the problems associated with deformities of air-holes in thefabrication of PCF. Also, we analyze few of the properties of the proposed photonic crystal fiber structure suchas Endlessly Single Mode(ESM) property and tunable dispersion, and compared with conventional photoniccrystal fiber.