Coherent supercontinuum generation in a silicon photonic wire in the   telecommunication wavelength range
  We demonstrate a fully coherent supercontinuum spectrum spanning 500 nm from a silicon-on-insulator photonic wire waveguide pumped at 1575 nm wavelength. An excellent agreement with numerical simulations is reported. The simulations also show that a high level of two-photon absorption can essentially enforce the coherence of the spectral broadening process irrespective of the pump pulse duration. 
Francois Leo, Simon-Pierre Gorza, Stephane Coen, Bart Kuyken and   Gunther Roelkens
physics.optics