Liquid crystal photonic crystal fibre with high non-linearity and birefringence

• Published in: IET optoelectronics 2014-12, Vol.8 (6), p.210-216
• Main Authors: Abdelghani, Amr M, Hameed, Mohamed Farhat O, Abdelrazzak, Maher, Hindy, Moataza Abd el Hamid, Obayya, Salah S.A
• Format: Article
• Language: English
• Subjects: Birefringence; Confinement; Design analysis; effective mode area; Finite difference method; finite difference methods; full‐vectorial finite‐difference method; high nonlinearity; holey fibres; hybridness; Liquid crystals; low confinement loss; Mathematical analysis; Nonlinearity; optical fibre polarisation; Photonic crystals; quasitransverse electric modes; quasitransverse magnetic modes; tellurite liquid crystal photonic crystal fibres; wavelength 1.55 mum
• ISSN: 1751-8768; 1751-8776; 1751-8776
• DOI: 10.1049/iet-opt.2013.0116

A novel design of highly birefringent tellurite liquid crystal photonic crystal fibres (PCFs) with low confinement loss and high non-linearity is introduced. The simulation results are obtained by using full-vectorial finite-difference method. The analysed parameters are birefringence, hybridness, effective mode area and non-linearity for the two fundamental polarised modes. Significant improvements of PCFs in terms of birefringence, confinement losses and non-linearity are demonstrated by careful investigation of the structure geometrical parameters and temperature. The reported design has high birefringence of 0.09094 and high non-linearity γ of 2502 and 1900 W−1 km−1 for the quasi-transverse electric and quasi-transverse magnetic modes, respectively, at the operating wavelength of 1.55 µm with low losses for the two fundamental polarised modes.