Gap solitons in a two-channel microresonator structure.
We show that, when two channel waveguides are coupled by a sequence of periodically spaced microresonators, the group-velocity dispersion is low in the vicinity of the gap associated with the resonant frequency of the resonators. This low dispersion permits the excitation of a gap soliton with much lower energy than in a gap of similar width caused by Bragg reflection.
Pereira
Suresh
S
Sipe
J E
JE
Heebner
John E
JE
Boyd
Robert W
RW