We report, to the best of our knowledge, the first demonstration of octave-spanning supercontinuum generation (SCG) on a silicon chip, spanning from the telecommunications c-band near 1.5 μm to the mid-infrared region beyond 3.6 μm. The SCG presented here is characterized by soliton fission and dispersive radiation across two zero group-velocity dispersion wavelengths. In addition, we numerically investigate the role of multiphoton absorption and free carriers, confirming that these nonlinear loss mechanisms are not detrimental to SCG in this regime.
© 2014 Optical Society of America
Original Manuscript: May 21, 2014
Manuscript Accepted: June 2, 2014
Published: July 28, 2014
Ryan K. W. Lau, Michael R. E. Lamont, Austin G. Griffith, Yoshitomo Okawachi, Michal Lipson, and Alexander L. Gaeta, "Octave-spanning mid-infrared supercontinuum generation in silicon nanowaveguides," Opt. Lett. 39, 4518-4521 (2014)