Open AccessSingle-PPLN-based simultaneous half-adder, half-subtracter, and OR logic gate: proposal and simulation
Author(s) -
Jian Wang,
Junqiang Sun,
Qi Sun
Publication year - 2007
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.15.001690
Subject(s) - lithium niobate , adder , optics , extinction ratio , pulse shaping , sum frequency generation , nonlinear optics , waveguide , materials science , computer science , physics , optoelectronics , laser , wavelength , cmos
We propose and simulate all-optical simultaneous half-adder, half-subtracter, and OR logic gate at 40 Gbit/s based on the cascaded sum-and difference-frequency generation (SFG+DFG) using only one periodically poled lithium niobate (PPLN) waveguide. The SFG and DFG processes generate the Borrow and Carry outputs, respectively. The Sum/Difference and OR are obtained by properly combining the outputs from PPLN after SFG+DFG. The eye diagrams, pulse width, quality-factor (Q-factor), extinction ratio (ER), and tunability are calculated and discussed, showing impressive operation performance.