Open AccessOTDM to WDM format conversion based on quadratic cascading in a periodically poled lithium niobate waveguide
Author(s) -
Kwang Jo Lee,
Sheng Liu,
Francesca Parmigiani,
M. Ibsen,
Periklis Petropoulos,
Katia Gallo,
David J. Richardson
Publication year - 2010
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.18.010282
Subject(s) - lithium niobate , optics , waveguide , wavelength division multiplexing , second harmonic generation , materials science , multiplexing , nonlinear optics , signal (programming language) , wavelength , optoelectronics , physics , laser , telecommunications , computer science , programming language
We propose and demonstrate error-free conversion of a 40 Gbit/s optical time division multiplexed signal to 4 x 10 Gbit/s wavelength division multiplexed channels based on cascaded second harmonic and difference frequency generation in a periodically poled lithium niobate waveguide. The technique relies on the generation of spectrally (and temporally) flat linearly chirped pulses which are then optically switched with short data pulses in the nonlinear waveguide. Error-free operation was obtained for all channels with a power penalty below 2dB.