We investigate the propagation properties of a multi-layer photonic crystal fiber with novel rhombic air holes using the finite element method,and calculate the dependence of the propagation properties on the waveleng...We investigate the propagation properties of a multi-layer photonic crystal fiber with novel rhombic air holes using the finite element method,and calculate the dependence of the propagation properties on the wavelength in the fiber with different geometrical structural parameters,including the internal angle and the external arrangement of the rhombic air holes.Optimizing these parameters,we design a photonic crystal which exhibits both a small dispersion value and low loss near the wavelength of 1.55μm.展开更多
Using a full-vector finite-difference time-domain （FDTD） method, this article explores the propagation characteristics of photonic crystal fiber （PCF） theoretically. The dependence of structural parameters on the ...Using a full-vector finite-difference time-domain （FDTD） method, this article explores the propagation characteristics of photonic crystal fiber （PCF） theoretically. The dependence of structural parameters on the effective index of the fundamental guided mode, effective index of the fundamental cladding mode, mode field diameter, confinement loss, effective mode area, and chromatic dispersion in PCF have been studied, respectively. The research presents a reference for designing of PCF with a specific purpose.展开更多
基金by the National High-Technology Research and Development Program of China under Grant No 2009AA03Z405the National Natural Science Foundation of China under Grant Nos 60971068 and 60908028.
文摘We investigate the propagation properties of a multi-layer photonic crystal fiber with novel rhombic air holes using the finite element method,and calculate the dependence of the propagation properties on the wavelength in the fiber with different geometrical structural parameters,including the internal angle and the external arrangement of the rhombic air holes.Optimizing these parameters,we design a photonic crystal which exhibits both a small dispersion value and low loss near the wavelength of 1.55μm.
基金supported by the National Natural Science Foundation of China(60644004)the National Basic Research Program of China(2003CB314901)
文摘Using a full-vector finite-difference time-domain （FDTD） method, this article explores the propagation characteristics of photonic crystal fiber （PCF） theoretically. The dependence of structural parameters on the effective index of the fundamental guided mode, effective index of the fundamental cladding mode, mode field diameter, confinement loss, effective mode area, and chromatic dispersion in PCF have been studied, respectively. The research presents a reference for designing of PCF with a specific purpose.
