Broadband dispersion compensating photonic crystal fiber with a high compensation ratio

This paper presents a broadband dispersion compensating photonic crystal fiber (B-DCPCF) with a high compensation ratio of 100:1. We theoretically tailored the negative dispersion in a photonic crystal fiber (PCF) to nullify the positive dispersion in the transmission fiber over a bandwidth range of as wide as possible. The numeric results indicate that the effective dispersion within ±0.2 ps/km/nm over a bandwidth range of 126 nm (from 1454 nm to 1580 nm). Finally, the modal properties were examined and verified that the proposed B-DCPCF should be operated in single mode throughout the operating band.