Title :
Ultrasmall Overlapped Arrayed-Waveguide Grating Based on Si Nanowire Waveguides for Dense Wavelength Division Demultiplexing
Author :
Dai, Daoxin ; He, Sailing
Author_Institution :
Centre for Opt. & Electromagn. Res., Zhejiang Univ., Hangzhou
Abstract :
A novel design for an ultrasmall arrayed-waveguide grating (AWG) demultiplexer based on a Si nanowire waveguide is presented. The two free propagation regions (FPRs) are overlapped so that the structure becomes more compact than the layout of a conventional design. Each half of an arrayed waveguide includes three straight sections and two bending sections, and all these sections are connected smoothly in sequence. Some recursive formulas for determining the geometrical parameters of the novel layout are derived. Numerical simulation results are given
Keywords :
arrayed waveguide gratings; nanowires; optical communication equipment; optical design techniques; silicon; wavelength division multiplexing; Si nanowire waveguides; arrayed-waveguide grating; dense wavelength division demultiplexing; Arrayed waveguide gratings; Demultiplexing; Electromagnetic waveguides; Helium; Optical refraction; Optical scattering; Optical variables control; Optical waveguides; Programmable control; Silicon on insulator technology; Arrayed-waveguide grating (AWG); nanowire; overlapped; silicon; ultrasmall; waveguide;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2006.879583
