Affiliation:
1. Department of Electronic Information and Electrical Engineering , Anyang Institute of Technology , Anyang , 455000 , China
Abstract
Abstract
A novel PCF (photonic crystal fiber) with variable air holes is designed to solve the problem that it is difficult to obtain flatted dispersion and low confinement losses simultaneously it can obtain flatted dispersion and low confinement losses by changing the size of air hole in the cladding. The structure of the optical fiber is analyzed by using FVFEM (full vector finite-element method) and APML (anisotropic perfectly matching layer) boundary conditions. The effective refractive index of the air hole at 1.55 μm is n
0 = 1, and that of quartz is set as 1.45,under these conditions, the simulation results show that the optical fiber has super-flat dispersion in the wavelength range of 1.25–1.78 μm, the dispersion varies ranges from 0 ± 0.68 (ps/nm km), and the confinement losses is less than 10−3 dBb/m.
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics
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