Self-Switching of Femtosecond Pulses in Highly Nonlinear Dual-Core Fibre

We demonstrate a pulse energy-governed nonlinear self-switching of femtosecond pulses at the wavelengths of 1700 nm and 1560 nm in a highly nonlinear high index contrast dual-core fiber. The improved technology process allowed the first-time registration of the switching effect in the communication C-band.