Title :
Wavelength division multiplexing and demultiplexing with photonic crystal waveguide couplers
Author :
Koshiba, Masanori
Author_Institution :
Div. of Electron. & Inf. Eng., Hokkaido Univ., Sapporo, Japan
fDate :
12/1/2001 12:00:00 AM
Abstract :
A multiplexer-demultiplexer (MUX-DEMUX) based on PC waveguide couplers is proposed, and its wavelength demultiplexing properties are theoretically investigated. First, a two-channel MUX-DEMUX is designed and characterized, and then, by cascading, two stages of photonic crystal (PC) waveguide couplers with different coupling coefficients are constructed. The device sizes are expected to be drastically reduced from a scale of a few tens of micrometers to a scale of a few hundreds of micrometers in a MUX-DEMUX
Keywords :
coupled mode analysis; demultiplexing equipment; finite element analysis; multiplexing equipment; optical couplers; photonic band gap; telecommunication channels; wavelength division multiplexing; 20 nm; PC waveguide couplers; channel spacing; coupled-mode theory; coupling coefficients; demultiplexing; demultiplexing properties; device sizes; finite element scheme; multiplexer-demultiplexer; photonic crystal waveguide couplers; simulation results; time-domain beam propagation method; two-channel MUX-DEMUX; wavelength division multiplexing; wide-passband wavelength division multiplexing systems; Channel spacing; Couplers; Demultiplexing; Finite element methods; Optical propagation; Optical waveguides; Photonic crystals; Time domain analysis; Waveguide theory; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
