We demonstrate four-wave mixing in silicon-on-insulator coupled-resonator optical waveguides consisting of 35 and 65 microring resonators, using a cw pump with coupled power below 20 mW and observed parametric conversion across more than 10 THz. The conversion efficiency is enhanced by +16 dB relative to a silicon straight waveguide of equivalent length, due to the slowing factor of the coupled-resonator structure.
© 2011 Optical Society of America
Original Manuscript: May 13, 2011
Revised Manuscript: June 29, 2011
Manuscript Accepted: July 5, 2011
Published: August 1, 2011
Jun Rong Ong, Michael L. Cooper, Greeshma Gupta, William M. J. Green, Solomon Assefa, Fengnian Xia, and Shayan Mookherjea, "Low-power continuous-wave four-wave mixing in silicon coupled-resonator optical waveguides," Opt. Lett. 36, 2964-2966 (2011)