Interferometric Chromatic Dispersion Measurement of a Photonic Band-gap Fiber

摘要

In recent years several new classes of fibers have emerged based on the same basic technology platform―air/silica microstructures. While all of these fibers act as waveguides, each exhibit different optical properties leading to different applications. Out of these, photonic band-gap fibers are touted as the next generation long-haul transmission fiber. Since light propagates in air or vacuum, these fibers promise lower loss, lower nonlinearity and lower material dispersion. Low chromatic dispersion will undoubtedly be a crucial property of photonic band-gap fibers in long-haul applications. We will present experimental data that shows chromatic dispersion can be as low as tens of psm/km at the transmission-spectrum center.