Title :
Wavelength-division demultiplexing using photonic crystal waveguides
Author :
Niemi, Tapio ; Frandsen, Lars Hagedorn ; Hede, Kristian Knak ; Harpøth, Anders ; Borel, Peter Ingo ; Kristensen, Martin
Author_Institution :
Res. Center COM, Tech. Univ. of Denmark, Kgs. Lyngby, Denmark
Abstract :
We demonstrate a new device concept for wavelength division demultiplexing based on planar photonic crystal waveguides. The filtering of wavelength channels is realized by shifting the cutoff frequency of the fundamental photonic bandgap mode in consecutive sections of the waveguide. The shift is realized by modifying the size of the border holes. Simulations and an experimental realization of a four-channel coarse wavelength division demultiplexer are described.
Keywords :
demultiplexing; optical communication equipment; optical filters; optical planar waveguides; photonic band gap; photonic crystals; wavelength division multiplexing; border hole size modification; coarse wavelength division demultiplexer; cutoff frequency shift; four-channel demultiplexer; fundamental photonic bandgap mode; photonic crystal waveguides; planar waveguides; wavelength channel filtering; wavelength-division demultiplexing; Cutoff frequency; Demultiplexing; Optical filters; Optical refraction; Optical variables control; Optical waveguides; Photonic band gap; Photonic crystals; Planar waveguides; Wavelength division multiplexing; Photonic bandgap (PBG); photonic crystal (PhC) waveguide; wavelength-division multiplexing (WDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.860001
