title: OTDM to WDM format conversion based on quadratic cascading in a periodically poled lithium niobate waveguide.
abstract: 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.
authors.affiliation: Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK. kjl@orc.soton.ac.uk
authors.forename: Kwang Jo
authors.initials: KJ
authors.lastname: Lee
authors.forename: Sheng
authors.initials: S
authors.lastname: Liu
authors.forename: Francesca
authors.initials: F
authors.lastname: Parmigiani
authors.forename: Morten
authors.initials: M
authors.lastname: Ibsen
authors.forename: Periklis
authors.initials: P
authors.lastname: Petropoulos
authors.forename: Katia
authors.initials: K
authors.lastname: Gallo
authors.forename: David J
authors.initials: DJ
authors.lastname: Richardson
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D009556:Niobium / Q000737:chemistry*; D055096:Optical Devices; D010087:Oxides / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*
chemical_list: D010087:Oxides; D009556:Niobium; C091692:lithium niobate