High Nonlinearity and Ultra High Birefringence Silicon Core Photonic Crystal Fiber

A hexagonal shape elliptical core microstructured photonic crystal fiber (PCF) has been designed and numerically studied. Propagation characteristics of the introduced PCF have been rigorously investigated through full vector finite element method (FV-FEM). The numerical investigation has been carefully carried out over the wavelength range from 1.3 μm - 2.00 μm by adopting the anisotropic perfectly matched layer (APML) as boundary condition. By tuning the global geometric parameters of PCF model, various performance parameters such as birefringence, effective mode area, dispersion, power fraction and nonlinearity have been inquired. This design has been simultaneously achieved high nonlinearity, ultra-high nonlinearity and large negative dispersion. Moreover, this hexagonal PCF structure can be more easily fabricated by sol-gel technique compared to other existing PCFs. Now it can be affirmed that, this PCF model has nifty potential in high-performance optical devices and applications.