2009/08/03 by Jacob Scheuer, Mark Shtaif
Engineering · Physics and Astronomy · #Bandwidth (computing) #Computer science #Dispersion (optics) #Optics #Photonic Crystals and Applications #Photonic and Optical Devices #Physics #Quantum optics and atomic interactions #Resonator #Stopband #Symmetry (geometry) #Telecommunications #Waveguide #physics.optics
paper · pdf · doi:10.1364/oe.18.001762
arxiv created 2009/08/03 · openalex publication_date 2010/01/14 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the dispersion relations in slow-light waveguide structures consisting of coupled microdisk resonators. A group theoretical analysis of the symmetry properties of the propagating modes reveals a fundamental phenomenon: The degeneracy of the CW and CCW rotating modes is removed, giving rise to two distinct transmission bands. This effect induces symmetry-based dispersion which may limit the usable bandwidth of such structures. The properties of this band splitting and its impact on CROW performance for optical communications are studied in detail.