Completely dielectric E-field sensor based on a Lithium Niobate MZI

We report an IO electric field sensor based on a particular cofiguration of Mach-Zehnder interferometer. The device, fabricated on a Lithium Niobate substrate, is totally dielectric, without any presence of metallic electrodes. The Mach-Zehnder was achieved through soft proton exchange and poling technologies. A modulation depth of 92% and an half wave voltage of 107.8 V were measured using a triangular voltage signal.

NEAR INFRARED PICOSECOND PULSED BACKWARD SECOND-HARMONIC-GENERATION IN PERIODICALLY-POLED LITHIUM NIOBATE

We report on backward second-harmonic-generation in bulk periodically-poled congruent lithium niobate with a 3.2μm period. A picosecond pulsed laser allowed us exciting a resonance at 1722nm. The resonances were also resolved by temperature tuning.

Surface Plasmon Resonance Optical Biosensors for Mannoproteins Detection

Sensore di campo elettrico completamente dielettrico in ottica integrata.

We report an electric field sensor based on a particular cofiguration of Mach-Zehnder interferometer (MZI). The device, fabricated on a Lithium Niobate substrate, is totally dielectric, without any presence of metallic electrodes. A modulation depth of 92% and an half wave voltage of 107.8 V were measured using a triangular voltage signal.

COMPONENTI NON LINEARI IN OTTICA INTEGRATA: NUOVI SPUNTI PER L' ELABORAZIONE TUTTO-OTTICA DEI SEGNALI

UV quasi-phase-matched second harmonic in LiTaO3 channel waveguide

Guide a scambio protonico in Tantalato di Litio stabili nel tempo

Nanotecnologie in Niobato di Litio per la conversione di frequenza in ottica integrata nel campo UV.

Quasi Phase Matched UV Second Harmonic Generation in Lithium Tantalate soft PE Waveguides

We report on first experimental results on UltraViolet second-harmonic generation by first-order quasiphase-matching in a surface periodically poled proton exchanged Lithium Tantalate waveguide. We have achieved a good compatibility with alpha phase proton exchanged channel waveguides in Lithium Tantalate. We held the sample in a temperature controlled oven kept at a constant temperature of 250 °C, to reduce photorefractive damage. The pump source was a Ti-Sapphire laser with a tunability range of 700 - 980 nm and a 40-GHz linewidth. Continuous wave UV light at 365.4 nm was produced with a conversion efficiency of 6.6% W-1cm-2.

Fabbricazione di guide PE in LiTaO3 prive di instabilità

Progettazione e realizzazione di biosensori a risonanza plasmonica superficiale in ottica integrata.

Prima dimostrazione di generazione UV per QPM in guide ottiche PE il LiTaO3

PARAMETRIC SELF-TRAPPING OF OPTICAL BEAMS VIA RANDOM QUASI PHASE MATCHING IN LITHIUM TANTALATE WAVEGUIDE

We report on experimental evidence of parametric spatial solitons in a lithium tantalate waveguide with randomized periodic ferroelectric poling. Two-color self-focusing via quadratic cascading overcomes the diffractive nature of both fundamental and frequency-doubled beams.

Prima sorgente nell’UV in ottica integrata ottenuta per QPM-SHG in Tantalato di Litio