Efficient electro-optical modulation on thin-film lithium niobate

Thin-film lithium niobate has emerged as an excellent, multifaceted platform for integrated photonics and opto-electronics, in both classical and quantum domains. We introduce a novel, to the best of our knowledge, dual-capacitor electrode layout for an efficient interface between electrical and opt...

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Bibliographic Details
Published in:Optics letters 2021-04, Vol.46 (8), p.1884-1887
Main Authors: Jin, Mingwei, Chen, Jiayang, Sua, Yongmeng, Kumar, Prajnesh, Huang, Yuping
Format: Article
Language:English
Subjects:
Electronics
Lithium niobates
Microwave photonics
Modulation
Optical communication
Photonics
Thin films
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Summary:Thin-film lithium niobate has emerged as an excellent, multifaceted platform for integrated photonics and opto-electronics, in both classical and quantum domains. We introduce a novel, to the best of our knowledge, dual-capacitor electrode layout for an efficient interface between electrical and optical signals on this platform. It significantly enhances the electro-optical modulation efficiency to an exceptional voltage-length product of 0.64 â‹… , thereby lowering the required electric power by many times. This technique can boost the performance of growing applications at the interface of integrated electronics and optics, such as microwave photonics, frequency comb generation, and telecommunication transmission.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.419597