Symmetry Considerations for Closed Loop Photonic Crystal Coupled Resonators

Autor:	Winston V. Schoenfeld, Matthew D. Weed, Charles Williams, Peter J. Delfyett
Rok vydání:	2013
Předmět:	Coupling Physics business.industry Physics::Optics Microstructured optical fiber Coupled mode theory Slow light Waveguide (optics) Atomic and Molecular Physics and Optics Resonator Optics business Coupling coefficient of resonators Photonic crystal
Zdroj:	Journal of Lightwave Technology. 31:1426-1432
ISSN:	1558-2213 0733-8724
DOI:	10.1109/jlt.2013.2250915
Popis:	Waveguide coupling to closed loop coupled-resonator optical waveguides is explored. By coupling a CROW chain back on itself, a reduction in individual resonant linewidth is achieved making these slow light modes more conducive to periodic filters toward novel frequency-comb integration. Through numerical simulation by finite-difference time-domain methods, the importance of waveguide symmetry conditions for coupling is illustrated. The impact of unit cavity mode symmetry strongly impacts the necessary coupling geometry to both cavities and waveguides. Design insight into different waveguide coupling schemes is provided while aiming to achieve transmission of the resonant structure exhibited by the isolated resonator.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::95940540d804ac0618443e865eb066f1 https://doi.org/10.1109/jlt.2013.2250915 Zobrazit plný text záznamu