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Topology optimization of coupling between slab and photonic crystal waveguide
Author(s) -
Hirayama Koichi,
Tabata Yoshihiro,
Tsuji Yasuhide,
Hayashi Yukinari
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23886
Subject(s) - coupling (piping) , slab , topology optimization , topology (electrical circuits) , microwave , photonic crystal , waveguide , core (optical fiber) , optoelectronics , finite element method , optics , materials science , electronic engineering , computer science , physics , engineering , telecommunications , electrical engineering , metallurgy , geophysics , thermodynamics
We employ topology optimization with the finite‐element method to improve the coupling between a slab waveguide and a photonic crystal waveguide. Here, we apply topology optimization in a small design region to realize the improvement of the coupling. Also, we simplify an optimized structure of the coupling region for easier fabrication and try to find core features of the optimized structure. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 3009–3012, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23886