High birefringence photonic crystal fiber with high nonlinearity and low confinement loss

Abstract

A particular photonic crystal fiber (PCF) designed with all circle air holes is proposed. Its characteristics are studied by full-vector finite element method (FEM) with anisotropic perfectly matched layer (PML). The simulation results indicated that the proposed PCF can realize high birefringence (up to 10(-2)), high nonlinearity (50W(-1)·km(-1) and 68W(-1)·km(-1) in X and Y polarizations respectively) and low confinement loss (less than 10(-3)dB/km at 1.55um wavelength).

Highly birefringent nonlinear PCF for optical sensing of analytes in aqueous solutions

“…Again, as delineated by Ref. [5], a proposal for PCF constructions that feature additional air holes in the aforementioned areas enhances birefringence and non-linearity. The sensitivity of the current model requires further investigation and improvement in order to purport it as a viable model.…”

“…In recent years, Photonic Crystal Fibers (PCFs) are particularly used for sensing applications due to their unique abilities that cannot be obtainable by conventional optical fibers. The advancement of PCF design technology as well as their far-reaching abilities renders them a potentially excellent solution for nanotechnology mechanisms for use in many optical applications [1][2][3][4][5][6][7][8].…”

“…[5] have revealed a nonlinear PCF structure with high birefringence and low confinement. In this paper [5], simulations revealed high birefringence of around 10 -2 , high non-linearity and minimal confinement losses can all be achieved in the demonstrative structure. Authors in Ref.…”

“…Authors in Ref. [5] have suggested that such proposed PCF structure can be useful for sensing applications.…”

Circular hole ENZ photonic crystal fibers exhibit high birefringence

“…Asymmetric sets of circular air-holes in the cladding and core regions of the PCFs developed in [16][17][18] achieved high birefringence values. [16] utilized asymmetrical circular air-holes in both the cladding and the core region of the reported PCF, resulting in a birefringence of 0.026, and a low CL of 10 -5 dB/m. The dual-hole unit-based porous-core hexagonal PCF in [17] attained a birefringence of 0.033, an EML of 0.43 dB/cm, and a CL of 10 -3 dB/m at an operating frequency of 0.85 THz.…”