Design Optimization of a Highly Birefringent and Highly Nonlinear Silicon Photonic Crystal Fiber

Numerical analysis of photonic crystal fiber of ultra-high birefringence and high nonlinearity

“…Furthermore, research has shown that achieving high birefringence, high nonlinearity and negative dispersion can be useful for polarization control in fiber optic sensors, telecommunication applications and broadband dispersion compensation in high-bit-rate transmission systems 22 . A lot of work has been reported recently to achieve high birefringence, high nonlinearity and dispersion management through the use of elliptical holes around the core 23,24 , using different shapes of air holes other than circular in or around the core [25][26][27] , defective core 21 , doping the core with gas or liquid and hybrid cladding 28,29 , double cladding 22 , dual core photonic bandgap 30 , triangular lattice 31 and other shapes of air hole rings apart from the widely used hexagonal lattice [32][33][34][35] . Rhombic and elliptical hole PCFs have been presented 26 to achieve birefringence (B) of 8 × 10 -3 and Confinement loss(CL) of 5 × 10 -4 dB/m at 1.55 µm.…”