Research on Properties of High Birefringence Elliptical Core Rectangular Like Photonic Crystal Fibers
The high birefringence photonic crystal fiber exhibits strong linear polarization maintenance capability. A unique structure of high birefringence photonic crystal fiber has been designed using multi-component laser glass materials as the core. Finite element method combined with perfect boundary conditions was employed to determine the birefringence co-efficients of this photonic crystal fiber at wavelengths of 1.55 μm and 1.80 μm ,resulting in values of 5.207×10-2 and 6.882× 10-2 ,respectively. At a wavelength of 1.55 μm ,the confinement losses in the X and Y polarization directions are 1.386× 10-5 dB/km and 5.386×10-7 dB/km ,respectively. The nonlinear coefficients indicate that for photonic crystal fibers with structural parameters M(D/Λ) equal to 0.7 and 0.8 ,the nonlinear coefficients in the X and Y polarization directions range between 4.374×103 km-1 · W-1 to 4.906×103 km-1 · W-1 and 5.621×103 km-1 · W-1 to 6.978×103 km-1 · W-1 ,respectively. The unique structure and excellent performance characteristics of the high birefringence photonic crystal fiber designed in this study provide new solutions for applications in fields such as optical communication and optical sensing.
high birefringencelow limiting losshigh nonlinearityphotonic crystal fiberfinite element method
万方数据
维普
