Open AccessPhotonic crystal power-splitter based on directional coupling
Author(s) -
In Soo Park,
HyunShik Lee,
Hyun-Jun Kim,
Kyung-Mi Moon,
SeungGol Lee,
O BeomHoan,
Se-Geun Park,
El-Hang Lee
Publication year - 2004
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.003599
Subject(s) - splitter , photonic crystal , optics , power dividers and directional couplers , coupling (piping) , photonic integrated circuit , waveguide , dispersion (optics) , physics , photonics , power (physics) , beam splitter , coupled mode theory , optoelectronics , materials science , refractive index , laser , quantum mechanics , metallurgy
We propose a new power-splitting scheme in two-dimensional photonic crystals that can be applicable to photonic integrated circuits. The proposed power-splitting mechanism is analogous to that of conventional three-waveguide directional couplers, utilizing coupling between guided modes supported by line-defect waveguides. Through the analysis of dispersion curve and field patterns of modes, the position in propagation direction, where an input field is split into a two-folded image, is determined by simple mode analysis. Based on the calculated position, a photonic crystal power-splitter is designed and verified by finite-difference timedomain computation.