Investigation of the Ultraflattened Dispersion in Photonic Crystal Fibers with Hybrid Cores
混合纤芯光子晶体光纤超平坦色散的研究

The dispersion properties of photonic crystal fibers(PCFs) with hybrid cores were systematically investigated by using plane-wave expansion method. The numerical calculation results show that an ultraflattened dispersion range of more than 800 nm in which the variation of dispersion is less than 0.6 ps·km－1·nm－1 can be achieved at～1.55 μm by properly designing the structure parameters of the PCFs.