期刊
JOURNAL OF OPTICS
卷 18, 期 8, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/18/8/085503
关键词
frequency doubling; LiNbO3; ridge waveguides; silicon photonics; micromachining
类别
资金
- European Program ActPhast
- Labex ACTION program [ANR-11-LABX-0001-01]
- RENATECH network and its FEMTO-ST MIMENTO technological facility
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.
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