Four-wave-mixing based wavelength conversion in a tapered fiber coated with carbon nanotubes/polymer composite

We demonstrate a nonlinear optical device based on a fiber taper coated with a carbon nanotube/polymer composite. Four wave mixing-based wavelength conversion of 10 Gb/s Non-return-to-zero signal with the coated fiber-taper nonlinear device is achieved. Wavelength tuning is also investigated.