Title

Symmetry Considerations for Closed Loop Photonic Crystal Coupled Resonators

Authors

Authors

M. D. Weed; C. G. Williams; P. J. Delfyett;W. V. Schoenfeld

Comments

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Abbreviated Journal Title

J. Lightwave Technol.

Keywords

Integrated optics; mode matching methods; optical resonators; resonator; filters; OPTICAL WAVE-GUIDE; SLOW LIGHT; MICRORING RESONATORS; ULTRALOW-THRESHOLD; NUMERICAL-ANALYSIS; LASER; NANOCAVITIES; WAVELENGTH; CAVITIES; PROPOSAL; Engineering, Electrical & Electronic; Optics; Telecommunications

Abstract

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.

Journal Title

Journal of Lightwave Technology

Volume

31

Issue/Number

9

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

1426

Last Page

1432

WOS Identifier

WOS:000316406600009

ISSN

0733-8724

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