Investigation On Wavelength Conversion Based On SSFS By Using HN-PCF

With the higher demand on services, all-optical network and optical switching network is being developed, as the key element of optical switching network, all-optical wavelength conversion is a research hotspot. Wavelength conversion by using nonlinear effect in fiber has super-fast advantage over others, especially wavelength conversion based on SSFS(Soliton Self-Frequency Shift) also possesses power dependence, wide modulation range and high efficiency. Photonic crystal fiber was firstly invented by Russell et. al. at 1992 that is constructed by regular hollow holes. PCF has many uncomparative advantages like dispersion controllable, high nonlinear, endless single mode and large mode area. This thesis focuses on the wavelength conversion based on SSFS in PCF, and includes several aspects as follows.The characteristics of PCF are introduced, and different wavelength conversion schemes based on nonlinear effects in fibers are compared and analyzed. The nonlinear Schrodinger equation is deduced and several influent factors are analyzed.Based on simulation of the wavelength conversion with SSFS, influences of input power, pulse width and noise on output are discussed. Results indicate that different width of pulse inputs have little difference on output noise, but narrow width pulse has better performance than wide one.At last, all-optical switch application based SSFS in PCF is inspected and viewed.