Search results for " Lithium Tantalate"

showing 6 items of 6 documents

All-Optical frequency Shifter in a Periodically Poled Lithium Tantalate Waveguide

2011

A frequency shifting device is fabricated and tested in a congruent Lithium Tantalate waveguide. Periodic poling for quasi-phase-matching and channels for operation in the near-infrared C-band were obtained, demonstrating a two-stage parametric conversion.

All-optical wavelength conversion second-harmonic generation difference-frequency generation ferroelectric crystals periodic poling Lithium Tantalate Lithium Niobate.Settore ING-INF/02 - Campi ElettromagneticiSettore ING-INF/01 - Elettronica
researchProduct

Characterization of PP-cLT Waveguides for phase conjugation in the C + L band of Optical Communications

2010

Lithium Tantalate.Channel WaveguidePeriodic Poling Lithium TantalateOptical Communication
researchProduct

Stable proton exchanged waveguides in Lithium Tantalate

2008

alpha, beta(1), and kappa(2) phases are investigated for planar waveguide fabrication by proton exchange in congruent lithium tantalate. The effective indices of planar waveguide eigenmodes were monitored over time, revealing that the exchange process induces aging instabilities in all phases except alpha.

Materials scienceproton exchanged (PE) waveguides Integrated optics lithium tantalate (LT) optical devicesIon exchangeProtonbusiness.industrytechnology industry and agriculturePhysics::OpticsNonlinear opticsWaveguide fabricationWaveguide (optics)Molecular physicsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialschemistry.chemical_compoundPlanarchemistryLithium tantalateOptoelectronicsElectrical and Electronic EngineeringbusinessRefractive index
researchProduct

Second Harmonic Generation via Random Quasi-phase Matching in a Periodically Poled Lithium Tantalate Waveguide

2011

We observe second harmonic generation via random quasi phase matching in a 1.5μm periodically poled lithium tantalate. The presence of a slab waveguide allows the comparison between bulk and guided wave configurations.

Second Harmonic Generation Lithium Tantalate Random Quasi-phase Matching rQPM SHGSettore ING-INF/02 - Campi ElettromagneticiSettore ING-INF/01 - Elettronica
researchProduct

GENERAZIONE DI SECONDA ARMONICA IN GUIDA D’ONDA IN TANTALATO DI LITIO CONGRUENTE CON POLING PERIODICO E CONVERSIONE DI LUNGHEZZA D’ONDA IN BANDA C + L

2010

Here we show the results obtained by the characterization of a lithium-tantalate based device for second-harmonic-generation and all-optical wavelength conversion. The waveguides have been obtained by proton-exchange in a periodically-poled congruent lithium tantalate substrate.

Second-harmonic generation Lithium tantalate Wavelength shifter
researchProduct

AUTOFOCALIZZAZIONE VIA RANDOM QUASI-PHASE-MATCHING IN GUIDE D’ONDA DI TANTALATO di LITIO

2010

We observe self-localization of light beams via second harmonic generation in a quasi-phase-matched proton-exchanged Lithium Tantalate slab waveguide in the presence of a random component of the periodically-poled grating.

Solitons Random quasi-phase-matching Lithium tantalate
researchProduct