Mode field patterns and preferential mode coupling in planar waveguide-coupled square microcavities | Zendy

Chung Yan Fong | Zendy; Andrew W. Poon | Zendy

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Mode field patterns and preferential mode coupling in planar waveguide-coupled square microcavities

Author(s) -

Chung Yan Fong,

Andrew W. Poon

Publication year - 2003

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.11.002897

Subject(s) - finite difference time domain method , planar , optics , waveguide , mode coupling , coupling (piping) , mode (computer interface) , radiation mode , physics , coupled mode theory , field (mathematics) , square (algebra) , equilibrium mode distribution , refractive index , materials science , single mode optical fiber , mathematics , geometry , computer science , laser , computer graphics (images) , pure mathematics , metallurgy , operating system

We report a numerical and analytical study of mode field patterns and mode coupling in planar waveguide-coupled square microcavities, using two-dimensional (2-D) finite-difference time-domain (FDTD) method and k-space representation. Simulated mode field patterns can be identified by k-space modes. We observe that different mode number parities permit distinctly different mode field patterns and spectral characteristics. Simulation results suggest that k-space modes that nearly match the waveguide propagation mode have a relatively high coupling efficiency. Such preferential mode coupling can be modified by the mode number parity.

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