An ultra-high birefringent and nonlinear decahedron photonic crystal fiber employing molybdenum disulphide (MoS2): A numerical analysis

Abstract

"A novel Decahedron photonic crystal fiber (DHn-PCF) is proposed. To sustain high birefringence and nonline- arity, the central elliptical core is filled with a highly nonlinear 2D material molybdenum disulphide (MoS2). The

significant performance parameters of the proposed DHn-PCF like birefringence, nonlinearity, confinement loss, and core power fraction has been investigated with change in its structural parameters. Simulation results confirmed an exceptionally high birefringence and nonlinearity of 0.632 and 9.68 × 105 W− 1 Km− 1 with the outstanding core power fraction of 98.6% for the well-known communication window at 1.55μm. Besides, the effective material loss (EML) and confinement loss (CL) are also found very low as 0.0302cm− 1 and 8.7 × 10− 10dB/mfor the same communication window. Therefore, with all these excellent outcomes, the proposed DHn-PCF proves itself a potential candidate for polarization maintenance, residual polarization compensation,

dispersion compensator, bio-medical imaging, supercontinuum and solitons generation, high bit data rate tele- communication and sensing application."