Electro-optic eigenfrequency tuning of potassium tantalate-niobate microresonators

Nanophotonic lithium niobate electro-optic modulators.

Since the emergence of optical fiber communications, lithium niobate (LN) has been the material of choice for electro-optic modulators, featuring high data bandwidth and excellent signal fidelity. Conventional LN modulators however are bulky, expensive and power hungry, and cannot meet the growing demand in modern optical data links. Chip-scale, highly integrated, LN modulators could offer solu...

On-chip electro-optic tuning of a lithium niobate microresonator with integrated in-plane microelectrodes.

We demonstrate electro-optic tuning of an on-chip lithium niobate microresonator with integrated in-plane microelectrodes. First, the metallic microelectrodes were fabricated on the substrate using a femtosecond laser. Then high-Q lithium niobate microresonator located between the microelectrodes was further fabricated by femtosecond laser direct writing accompanied by focused ion beam milling....

Light-enhanced electro-optic spectral tuning in annealed proton-exchanged periodically poled lithium niobate channel waveguides.

We report the observation of light-enhanced electro-optic spectral tuning in annealed proton-exchanged, asymmetric domain-duty-cycle periodically poled lithium niobate (PPLN) channel waveguides for second-harmonic generation. The spectral tuning rate was increased rapidly from 0.07 nm/(kV/mm) to a saturated value of 0.32 nm/(kV/mm) in a 30%/70% domain-duty-cycle PPLN waveguide when the fundamen...

One-dimensional steady-state photorefractive spatial solitons in centrosymmetric paraelectric potassium lithium tantalate niobate.

We report the first observation of spatial one-dimensional photorefractive screening solitons in centrosymmetric media and compare the experimental results with recent theoretical predictions. We find good qualitative agreement with theory.

Electret-based Unsteady Thermal Energy Harvester using Potassium Tantalate Niobate Crystal