Analysis and fabrication of highly nonlinear photonic crystal fiber

摘要

We have designed a high nolinear photonic crystal fiber by considering nonlinear coefficient, chromatic dispersion and confinement loss. The detail of the design process is presented in this paper. According the simulation results, we have fabricated a kind of highly nonlinear photonic crystal fiber, which is characteristics with the flatten dispersion curve at 800nm wave band and negative dispersion at wavelength of 805nm (about -40psm/km). In this kind of PCF we design the zero dispersion around 800nm. With the fabricated fiber, we demonstrate that supercontinuum emission with spectrum stretching over 900nm is obtained by injecting Ti: sapphire laser pulses.