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Acoustically Mediated Microwave-to-Optical Conversion on Thin-Film Lithium Niobate

Shao, Linbo and Yu, Mengjie and Maity, Smarak and Sinclair, Neil and Zheng, Lu and Chia, Cleaven and Shams-Ansari, Amirhassan and Wang, Cheng and Zhang, Mian and Lai, Keji and Lončar, Marko (2020) Acoustically Mediated Microwave-to-Optical Conversion on Thin-Film Lithium Niobate. In: 2020 IEEE 33rd International Conference on Micro Electro Mechanical Systems (MEMS). IEEE , Piscataway, NJ, pp. 1215-1218. ISBN 9781728135816. https://resolver.caltech.edu/CaltechAUTHORS:20201012-124838897

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Abstract

Taking advantage of the strong piezoelectricity of lithium niobate (LN) and the high-quality (Q) -factor acoustic resonator around 3 GHz, on-chip microwave-to-optical conversion is demonstrated by our integrated acousto-optic Mach-Zehnder modulator on suspended LN thin film. Our devices achieve microwave-to-acoustic coupling efficiencies of 90%, and the half-wave voltage of Vπ=3.9 V for only a 400-μm modulation length at the telecommunication optical wavelength. This result gives the half-wave-voltage-length product VπL, the figure of merit for optical modulator, as low as 0.15 V·cm, which is a 10-fold reduction over the start-of-the-art electro-optic modulators. In addition, our acoustic device demonstrates an acoustic Q factor of 3,600 at 3.3 GHz that results in a start-of-the-art acoustic frequency-quality product of fQ = 10¹³ at room-temperature.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/mems46641.2020.9056347DOIArticle
ORCID:
AuthorORCID
Shao, Linbo0000-0002-0615-7848
Yu, Mengjie0000-0002-7815-4195
Shams-Ansari, Amirhassan0000-0002-2165-7832
Wang, Cheng0000-0002-1939-1422
Zhang, Mian0000-0001-9838-3895
Lončar, Marko0000-0002-5029-5017
Additional Information:© 2020 IEEE. This work is supported by the STC Center for Integrated Quantum Materials, NSF Grant No. DMR-1231319, NSF E2CDA Grant No. ECCS-1740296, NSF CQIS Grant No. ECCS-1810233, ONR MURI Grant No. N00014-15-1-2761, and NSF Grant No. DMR-1707372. N.S. acknowledges the support of the Natural Sciences and Engineering Research Council of Canada (NSERC) and the AQT Intelligent Quantum Networks and Technologies (INQNET) research program. This work was performed in part at the Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Coordinated Infrastructure Network (NNCI), which is supported by the National Science Foundation under NSF award no. 1541959. CNS is part of Harvard University.
Group:INQNET
Funders:
Funding AgencyGrant Number
NSFDMR-1231319
NSFECCS-1740296
NSFECCS-1810233
Office of Naval Research (ONR)N00014-15-1-2761
NSFDMR-1707372
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
AQT Intelligent Quantum Networks and Technologies (INQNET)UNSPECIFIED
NSFECCS-1541959
Subject Keywords:Microwave-to-optical conversion, Acoustic Resonator, Lithium Niobate, Acousto-optics, Mach-Zehnder Modulator
Record Number:CaltechAUTHORS:20201012-124838897
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20201012-124838897
Official Citation:L. Shao et al., "Acoustically Mediated Microwave-to-Optical Conversion on Thin-Film Lithium Niobate," 2020 IEEE 33rd International Conference on Micro Electro Mechanical Systems (MEMS), Vancouver, BC, Canada, 2020, pp. 1215-1218, doi: 10.1109/MEMS46641.2020.9056347
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105984
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:12 Oct 2020 19:59
Last Modified:12 Oct 2020 19:59

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