Title :
Analysis of Ultrafast All-Optical OTDM Demultiplexing Based on Cascaded Wavelength Conversion in PPLN Waveguides
Author :
Wang, Yong ; Xu, Chang-Qing
Author_Institution :
Dept. of Eng. Phys., McMaster Univ., Hamilton, Ont.
fDate :
4/1/2007 12:00:00 AM
Abstract :
Ultrafast all-optical optical time-division multiplexing demultiplexing based on the cascaded second-harmonic generation and difference-frequency generation wavelength conversion in quasi-phase-matched periodically poled lithium niobate waveguides are studied theoretically. For a typical 160- to 10-Gb/s demultiplexing process, conversion efficiency, pulse shape, time delay, phase variation, and crosstalk are investigated in two different arrangements of the 160-Gb/s signals, and both the wavelength conversion and pulse reshaping can be realized
Keywords :
demultiplexing; high-speed optical techniques; lithium compounds; optical communication equipment; optical crosstalk; optical frequency conversion; optical phase matching; optical waveguides; optical wavelength conversion; time division multiplexing; 10 Gbit/s; 160 Gbit/s; LiNbO3; OTDM demultiplexing; all-optical demultiplexing; cascaded second-harmonic generation; cascaded wavelength conversion; difference-frequency generation; optical crosstalk; optical time division multiplexing; periodically poled lithium niobate waveguides; phase variation; pulse reshaping; pulse shaping; quasiphase matching; time delay; ultrafast demultiplexing; Demultiplexing; Lithium niobate; Optical crosstalk; Optical pulse shaping; Optical waveguide theory; Optical waveguides; Optical wavelength conversion; Shape; Ultrafast optics; Wavelength conversion; Difference frequency generation; optical time- division multiplexing (OTDM); periodically poled lithium niobate (PPLN); quasi-phase-matching (QPM); second-harmonic generation (SHG);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.893038
