Open AccessAll-optical UWB pulse generation using sum-frequency generation in a PPLN waveguide
Author(s) -
Jian Wang,
Qi Sun,
Junqiang Sun,
Weiwei Zhang
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.003521
Subject(s) - lithium niobate , optics , attenuation , waveguide , signal (programming language) , pulse (music) , sum frequency generation , nonlinear optics , materials science , optical parametric amplifier , quantum optics , laser , physics , optical amplifier , computer science , detector , programming language
We propose and demonstrate a novel approach to optically generate ultrawideband (UWB) monocycle pulses by exploiting the parametric attenuation effect of sum-frequency generation (SFG) in a periodically poled lithium niobate (PPLN) waveguide. The SFG process changes the continuous-wave pump into dark optical pulse pump with undershoot, resulting in the generation of UWB monocycle through the combination of input signal and output pump with proper relative time advance/delay. Pairs of polarity-inverted UWB monocycle pulses meeting the UWB definition of U. S. Federal Communications Commission (FCC, part 15) are successfully obtained in the experiment.