Open Access

ARTICLE

Novel Butterfly Photonic Crystal Fiber Structure with Negative Dispersion and High Non-Linearity

Sabrina Abedin^a*, Avijit Hira^a, Sayeb Mohammad Tadvin^b

a Department of Electronics and Telecommunication Engineering, Chittagong University of Engineering & Technology, Chittagong, Bangladesh.
b Department of Electrical and Electronic Engineering, Chittagong University of Engineering & Technology, Chittagong, Bangladesh.

* Corresponding Author:* Correspondence Author, E-mail:

Journal of Advanced Optics and Photonics 2018, 1(3), 235-249. https://doi.org/10.32604/jaop.2018.03869

Abstract

Design flexibility and enormous optical properties of Photonic Crystal Fiber (PCF) suited for different types of applications have influenced researchers and engineers in enhancing present drawbacks. Photonic crystal fiber is based on periodic morphological microstructure of air-holes where different arrangement of air holes led to different types of structures. Several types of structures with different shapes like Hexagonal, Octagonal, Honeycomb, Circular etc. have been proposed earlier. In this research, a novel PCF structure is proposed with butterfly geometry being inspired by natural form of PCF. To validate the performance of the new design, optical properties like dispersion, confinement loss and high nonlinearity are extracted with satisfactory results. COMSOL Multiphysics is used as modelling and simulation environment. To achieve negative dispersion -1.56x10^4 ps/km.nm at 1550nm, holes diameter and their spacing are considered accordingly. Multiple defect holes as well as elliptical core make the structure asymmetric which exhibits high nonlinearity of 42.7

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