We propose a scheme to increase the delay-time–bandwidth product for a periodic microring resonator structure in slowing or stopping light. The idea is based on the existence of a low group velocity and low dispersion region close to a band edge near a ring resonance. By putting different frequency components on resonance with different rings, one can drastically slow down the light without inducing large additional dispersive distortion.
© 2007 Optical Society of America
Original Manuscript: September 19, 2006
Revised Manuscript: January 6, 2007
Manuscript Accepted: January 19, 2007
Published: March 19, 2007
Zhenshan Yang and J. E. Sipe, "Increasing the delay-time-bandwidth product for microring resonator structures by varying the optical ring resonances," Opt. Lett. 32, 918-920 (2007)