Title :
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
fDate :
7/1/2002 12:00:00 AM
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;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2002.1017583
