Broadband generation of cascaded four-wave mixing products
A new method to efficiently generate broadband cascaded four-wave mixing products is presented. It consists of launching two strong pump waves near the zero-dispersion wavelength of an optical fiber. The obtained bandwidth of Four-Wave Mixing products is width- and wavelength-tunable by adjusting the laser wavelengths and their polarization states. This method has been applied to standard, dispersion-shifted and highly nonlinear fibers (HNLF). The maximum measured bandwidth of 300 nm has been obtained nonlinear fibers by using HNLF.