High efficiency frequency doubling in fully diced LiNbO3 ridge waveguides on silicon. (14th July 2016)

• Record Type: Journal Article
• Authors: Chauvet, Mathieu; Henrot, Fabien; Bassignot, Florent; Devaux, Fabrice; Gauthier-Manuel, Ludovic; Pêcheur, Vincent; Maillotte, Hervé; Dahmani, Brahim
• Is Part Of: Journal of optics. Volume 18:Number 8(2016:Aug.)
• Publication Date: 2016-07-14
• Subjects: frequency doubling -- LiNbO3 -- ridge waveguides -- silicon photonics -- micromachining; Optics -- Periodicals; 535.05
• DOI: 10.1088/2040-8978/18/8/085503
• Languages: English
• ISSNs: 2040-8978

Abstract

Abstract: Nonlinear periodically poled ridge LiNbO3 waveguides have been fabricated on silicon substrates. Components are carved with only the use of a precision dicing machine without the need for grinding or polishing steps. They show efficient second harmonic generation at telecommunication wavelengths with normalized conversion reaching 204%/W in a 15 mm long device. The influence of the geometrical non uniformities of waveguides due to fabrication processes is asserted. Characteristics of the components are studied; notably their robustness and tunability versus temperature.