Heptagonal Photonic Crystal Fiber for Dispersion Compensation with a Very Low Confinement Loss

Md Borhan Mia; Mohammad Faisal; Syeda Iffat Naz; Animesh Bala; Kanan Roy Chowdhury

doi:10.1109/ICECE.2018.8636770

paper

Heptagonal Photonic Crystal Fiber for Dispersion Compensation with a Very Low Confinement Loss

arXiv:1710.00068 · doi:10.1109/ICECE.2018.8636770

Abstract

This paper presents a photonic crystal fiber (PCF) with heptagonal core and heptagonal cladding for dispersion compensation. Different optical properties of the suggested PCF are explored using the finite element method (FEM). The proposed dispersion compensating PCF (DC-PCF) exhibits a very large negative chromatic dispersion of $- 940 p s / (nm - k m)$ at $1550 nm$ wavelength. The overall dispersion of the DC-PCF is $- 420.1$ to $- 1160 p s / (nm - k m)$ in the wavelength range of $1390$ to $1700 nm$ ( $310 nm$ band). The relative dispersion slope is $0.0036 n m^{- 1}$ which is a perfect match with the standard single mode fibers. Moreover, it exhibits a very low confinement loss of about $1 0^{- 5} d B / k m$ and low nonlinearity of $45 W^{- 1} k m^{- 1}$ at $1550 nm$ wavelength. Since the suggested DC-PCF has very high negative dispersion and low nonlinearity, it can be a potential candidate for broadband dispersion compensation in fiber-optic communication.

18 pages, 12 figures