Polarisation maintaining square shape photonic crystal fibre with high nonlinearity
by Monika Kiroriwal; Poonam Singal
International Journal of Engineering Systems Modelling and Simulation (IJESMS), Vol. 15, No. 5, 2024

Abstract: A highly birefringent square shape photonic crystal fibre (S-PCF) with high nonlinearity has been simulated and studied. AlGaAs infiltrated slotted elliptical and rectangular cores are considered to identify the impact of core shape on optical properties. The light managing behaviour of the triangular meshed S-PCF is studied by employing the finite element method (FEM). Simulated results indicate that the slotted elliptical core is more compelling than the slotted rectangular core. Proposed PCF with high birefringence nearly to 0.46, high nonlinearity of 1.2 × 10⁵ W^-1km^-1, and high numerical aperture of 0.873 at 2 μm can be a prominent contender for a wide span of uses such as in nonlinear optics, polarisation-maintaining, sensing, and medical imaging.

Online publication date: Tue, 03-Sep-2024

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