Enhancement of Effective Electro-optic Coefficient in Domain Engineered UV-written Waveguides in LiNbO3
نویسندگان
چکیده
UV laser-induced poling-inhibition produces inverted domains in LiNbO3 which overlap significantly with waveguide modes. We have observed a 26% enhancement of the effective electro-optic coefficient in such domain-engineered waveguides. OCIS codes: (130.3730) Lithium niobate; (130.0130) Integrated optics; (230.0230) Optical devices
منابع مشابه
Electro-Optic Coefficient Enhancement in Poled LiNbO3 Waveguides
Lithium niobate crystals (LN) show a significant electro-optic (EO) response which contributes to the fabrication of low-voltage operation, high speed integrated optical modulators routinely used in optical telecommunication and integrated optics [1]. A UV laser direct writing method for the fabrication of optical channel waveguides has been proposed and characterized recently [2–4]. Here we re...
متن کاملFabrication of a Y-splitter Modulator Embedded in LiNbO3 with a Femtosecond Laser
We describe a technique to integrate embedded microelectrodes and optical waveguides in Lithium niobate (LiNbO3) using a femtosecond laser, and a Y-splitter modulator was demonstrated. The Y-splitter was fabricated by femtosecond laser direct writing and the embedded microelectrodes were fabricated by combining femtosecond laser ablation with selective electroless plating. The embedded microele...
متن کاملHybrid amorphous silicon (a-Si_H)–LiNbO3 electro-optic modulator
Here we report the demonstration of a GHz-speed Lithium Niobate (LiNbO3) modulator that uses an amorphous Silicon waveguide to strongly confine light. The compact (o1 mm) modulator is realized by low-temperature deposition of hydrogenated amorphous Silicon (a-Si:H) onto a x-cut LiNbO3 substrate. The a-Si:H provides tight waveguide mode confinement while allowing strong evanescent coupling to th...
متن کاملA theoretical model of the linear electro-optic effect
A simple theoretical study of the linear electro-optic effect is presented. This semiclassical approach is based on the single-energy-gap model, the dielectric theory and the concepts of bond charge and effective ionic charge. A general expression is obtained for the electro-optic coefficient of a crystal and is applied to a wide variety of diatomic and ternary compounds including zincblende (G...
متن کاملSimulation and Design of an Organic Quantum Film Electrooptic Switch
In this paper the simulation and design of a quantum-film electro-optic switch is considered. This photonic device, is made from a new organic dipolar material called MNA or 2-methyl-4 nitroaniline, which possesses a high merit in comparison with it's inorganic counterparts (e.g. LiNbO3, GaAs, InSb, Quartz, etc). Montecarlo method is used to simulate the photon-it-electron interaction in this m...
متن کامل