Integrated electro-optic modulators in x-cut lithium niobate thin film

Integrated optics is poised to revolutionize several data communication applications. The development of high performance electro-optic modulators is essential for the technology to be viable. In this paper, single-mode electro-optic modulators in x-cut lithium niobate thin film are designed, simula...

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Bibliographic Details
Published in:Optik (Stuttgart) 2020-06, Vol.212, p.164691, Article 164691
Main Authors: Han, Huangpu, Xiang, Bingxi
Format: Article
Language:English
Subjects:
Electro-optic modulator
Integrated optics
Lithium niobate thin film
Waveguide devices
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Summary:Integrated optics is poised to revolutionize several data communication applications. The development of high performance electro-optic modulators is essential for the technology to be viable. In this paper, single-mode electro-optic modulators in x-cut lithium niobate thin film are designed, simulated, and analyzed. The single-mode conditions of lithium niobate ridge waveguides are analyzed in detail. The design parameters of Y-branch and separation distances between electrodes and ridge waveguides are optimized. The half-wave voltage of the electro-optic modulator with device lengths of 10 mm is determined. The half-wave voltage-length product is about 2.2 V·cm indicating the efficient electric-optical modulation. This study is helpful for understand of electro-optic modulator structures in lithium niobate thin film, as well as for the fabrication of high-performance and multifunctional electro-optic modulation devices.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2020.164691