A new photonic crystal fibre with low nonlinearity, low confinement loss and improved effective mode area

Abstract

Photonic crystal fibres with large mode areas are widely employed for reducing the impairments arising from various nonlinear effects. We suggest a new design of photonic crystal fibres with large effective mode area. The fibre consists of six air-hole rings with two different structures and unequal diameters, where the air holes of the third ring are filled with the substance having high refractive index. Employing a full vectorial finite-element method, we have found that our structure exhibits a large effective mode area (up to 3575 µm 2 at the light wavelength of 1200 nm) and low confinement losses (about 5.70×10-3 dB/km at 1550 nm).

Frequency Analysis of Electromagnetic Waves in Tripartite Photonic Crystals with Adjustable Part Lengths

“…Due to the fast technological advances in optoelectronics, optics, and telecommunications, studies on optical structures have gained momentum (Barrientos-Garcia et al, 2016;Li et al, 2016;Han et al, 2021;Kaburcuk and Elsherbeni, 2021). There are many studies in the literature on optical structures, such as metamaterials and photonic crystals (Sung et al, 2011;Alipour-Banaei et al, 2017;Chen et al, 2017;Zhang et al, 2018;Benhaddad et al, 2019;Napolskii et al, 2020;Shi et al, 2020;Singer et al, 2020). Phononic structures affected by sound waves also show structurally similar properties to photonic crystals among optical structures (Lu et al, 2017;Sun et al, 2019;Ayman et al, 2020;Rostami et al, 2020;Trzaskowska et al, 2020;Rostami et al, 2021).…”