Slow Light with Photonic Crystals for On-Chip Optical Interconnects
Figure 4
(a) Concept
of PC-CCWs used to design ultracompact MZIs. Here is the degree of freedom for varying the device structure.
(b) The
dispersion curves for the CCW defect bands. As the separation between the cavities is increased, the
spatial overlap between the fields localized in each cavity is reduced, thus
flattening the dispersion curve and reducing group velocity.
