The Design of an Dispersion-compensating Photonic Crystal Fiber for Optical Transport Network

摘要

Due to the dispersion compensation characteristic exhibited by the Photonic Crystal Fiber (PCF), the dispersion compensation based PCF for compensating the G.652 fiber was designed in this research so as to meet the business demands of the fiber communication system. The dispersion compensation characteristic of the PCF was analyzed using a Multi-Pole Method (MPM) to obtain change law of the dispersion with the change of structure parameters. Based on the change law, dispersion compensation based W type PCF which includes was designed. The fiber cladding included nine-layer vents with the dispersion value of -402.7 ps·km~(-1)·nm~(-1) and its dispersion slope of -1.427 ps·km~(-1)·nm~(-2) at 1550 nm. Using Optisim platform, a dispersion compensation based DWDM system was simulated. Results demonstrated that bit error rates of the system were all less than 10~(-12), which satisfies requirements of the bandwidth communication.