Structural tuning of guiding modes of line-defect waveguides of silicon-on-insulator photonic crystal slabs

Author

Notomi, Masaya ; Shinya, Akihiko ; Yamada, Koji ; Takahashi, J.-I. ; Takahashi, C. ; Yokohama, Itaru

Author_Institution

NTT Basic Res. Labs., NTT Corp., Tokyo, Japan

Volume

38

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

736

Lastpage

742

Abstract

We experimentally demonstrate the structural tuning of the waveguiding modes of line defects in photonic crystal (PC) slabs. By tuning the defect widths, we realized efficient single-mode waveguides that operate within photonic band gap frequencies in silicon-on-insulator PC slabs. The observed waveguiding characteristics agree very well with three-dimensional finite difference time-domain calculations. We also directly measured the propagation loss of the line defect waveguides and obtained a value of 6 dB/mm

Keywords

finite difference time-domain analysis; optical losses; optical tuning; optical waveguides; photonic band gap; silicon-on-insulator; SOI photonic crystal slab line-defect waveguides; Si-SiO₂; defect width tuning; guiding modes; photonic band gap frequencies; propagation loss; single-mode waveguides; structural tuning; three-dimensional finite difference time-domain calculations; waveguiding modes; Finite difference methods; Frequency; Loss measurement; Photonic band gap; Photonic crystals; Silicon on insulator technology; Slabs; Time domain analysis; Tuning; Waveguide discontinuities;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2002.1017583

Filename

1017583