Abstract

The dispersion of a coupled resonator optical waveguide made of photonic crystal mode-gap cavities is pronouncedly asymmetric. This asymmetry cannot be explained by the standard tight binding model. We show that the fundamental cause of the asymmetric dispersion is the inherent dispersive cavity mode profile; i.e., the mode wave function depends on the driving frequency, not the eigenfrequency. This occurs because the photonic crystal cavity resonances do not form a complete set. We formulate a dispersive mode coupling model that accurately describes the asymmetric dispersion without introducing any new free parameters.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Semianalytical quasi-normal mode theory for the local density of states in coupled photonic crystal cavity–waveguide structures

Jakob Rosenkrantz de Lasson, Philip Trøst Kristensen, Jesper Mørk, and Niels Gregersen
Opt. Lett. 40(24) 5790-5793 (2015)

Tunable all-optical plasmonic diode based on Fano resonance in nonlinear waveguide coupled with cavities

Cairong Fan, Fenghua Shi, Hongxing Wu, and Yihang Chen
Opt. Lett. 40(11) 2449-2452 (2015)

Dual-mode-locking mechanism for an akinetic dispersive ring cavity swept source

Radu F. Stancu and Adrian Gh. Podoleanu
Opt. Lett. 40(7) 1322-1325 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription