This article designs a novel type of non-bravais lattice photonic crystal fiber.To form the nesting complexperiod with positive and negative refractive index materials respectively,a cylinder with the same radius and ...This article designs a novel type of non-bravais lattice photonic crystal fiber.To form the nesting complexperiod with positive and negative refractive index materials respectively,a cylinder with the same radius and negative refractive index is introduced into the center of each lattice unit cell in the traditional square lattice air-holes photonic crystal fiber.The photonic band-gap of the photonic crystal fiber is calculated numerically by the plane wave expansion method.The result shows that compared with the traditional square photonic band-gap fiber(PBGF),when R=Λis 0.35,the refractive index of the substrate,airhole,and medium-column are 1.30,1.0,and–1:0,respectively.This new PBGF can transmit signal by the photonic band-gap effect.When the lattice constantΛvaries from 1:5μm to 3:0μm,the range of the wavelength ranges from 880 nm to 2300 nm.展开更多
文摘This article designs a novel type of non-bravais lattice photonic crystal fiber.To form the nesting complexperiod with positive and negative refractive index materials respectively,a cylinder with the same radius and negative refractive index is introduced into the center of each lattice unit cell in the traditional square lattice air-holes photonic crystal fiber.The photonic band-gap of the photonic crystal fiber is calculated numerically by the plane wave expansion method.The result shows that compared with the traditional square photonic band-gap fiber(PBGF),when R=Λis 0.35,the refractive index of the substrate,airhole,and medium-column are 1.30,1.0,and–1:0,respectively.This new PBGF can transmit signal by the photonic band-gap effect.When the lattice constantΛvaries from 1:5μm to 3:0μm,the range of the wavelength ranges from 880 nm to 2300 nm.
