Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction

© 2020 Optical Society of America. Linking superconducting quantum devices to optical fibers via microwave-optical quantum transducers may enable large-scale quantum networks. For this application, transducers based on the Pockels electro-optic (EO) effect are promising for their direct conversion m...

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Main Authors: Holzgrafe, Jeffrey, Sinclair, Neil, Zhu, Di, Shams-Ansari, Amirhassan, Colangelo, Marco, Hu, Yaowen, Zhang, Mian, Berggren, Karl K, Lončar, Marko
Other Authors: Massachusetts Institute of Technology. Research Laboratory of Electronics
Format: Article
Language:English
Published: The Optical Society 2022
Online Access:https://hdl.handle.net/1721.1/142769
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author Holzgrafe, Jeffrey
Sinclair, Neil
Zhu, Di
Shams-Ansari, Amirhassan
Colangelo, Marco
Hu, Yaowen
Zhang, Mian
Berggren, Karl K
Lončar, Marko
author2 Massachusetts Institute of Technology. Research Laboratory of Electronics
author_facet Massachusetts Institute of Technology. Research Laboratory of Electronics
Holzgrafe, Jeffrey
Sinclair, Neil
Zhu, Di
Shams-Ansari, Amirhassan
Colangelo, Marco
Hu, Yaowen
Zhang, Mian
Berggren, Karl K
Lončar, Marko
author_sort Holzgrafe, Jeffrey
collection MIT
description © 2020 Optical Society of America. Linking superconducting quantum devices to optical fibers via microwave-optical quantum transducers may enable large-scale quantum networks. For this application, transducers based on the Pockels electro-optic (EO) effect are promising for their direct conversion mechanism, high bandwidth, and potential for low-noise operation. However, previously demonstrated EO transducers require large optical pump power to overcome weak EO coupling and reach high efficiency. Here, we create an EO transducer in thin-film lithium niobate, a platform that provides low optical loss and strong EO coupling. We demonstrate on-chip transduction efficiencies of up to (2.7 ± 0.3) × 10−5 and (1.9 ± 0.4) × 10−6/µW of optical pump power. The transduction efficiency can be improved by further reducing the microwave resonator’s piezoelectric coupling to acoustic modes, increasing the optical resonator quality factor to previously demonstrated levels, and changing the electrode geometry for enhanced EO coupling. We expect that with further development, EO transducers in thin-film lithium niobate can achieve near-unity efficiency with low optical pump power.
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spelling mit-1721.1/1427692023-02-13T18:48:33Z Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction Holzgrafe, Jeffrey Sinclair, Neil Zhu, Di Shams-Ansari, Amirhassan Colangelo, Marco Hu, Yaowen Zhang, Mian Berggren, Karl K Lončar, Marko Massachusetts Institute of Technology. Research Laboratory of Electronics © 2020 Optical Society of America. Linking superconducting quantum devices to optical fibers via microwave-optical quantum transducers may enable large-scale quantum networks. For this application, transducers based on the Pockels electro-optic (EO) effect are promising for their direct conversion mechanism, high bandwidth, and potential for low-noise operation. However, previously demonstrated EO transducers require large optical pump power to overcome weak EO coupling and reach high efficiency. Here, we create an EO transducer in thin-film lithium niobate, a platform that provides low optical loss and strong EO coupling. We demonstrate on-chip transduction efficiencies of up to (2.7 ± 0.3) × 10−5 and (1.9 ± 0.4) × 10−6/µW of optical pump power. The transduction efficiency can be improved by further reducing the microwave resonator’s piezoelectric coupling to acoustic modes, increasing the optical resonator quality factor to previously demonstrated levels, and changing the electrode geometry for enhanced EO coupling. We expect that with further development, EO transducers in thin-film lithium niobate can achieve near-unity efficiency with low optical pump power. 2022-05-26T13:49:27Z 2022-05-26T13:49:27Z 2020 2022-05-26T13:32:12Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142769 Holzgrafe, Jeffrey, Sinclair, Neil, Zhu, Di, Shams-Ansari, Amirhassan, Colangelo, Marco et al. 2020. "Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction." Optica, 7 (12). en 10.1364/OPTICA.397513 Optica Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf The Optical Society Optica Publishing Group
spellingShingle Holzgrafe, Jeffrey
Sinclair, Neil
Zhu, Di
Shams-Ansari, Amirhassan
Colangelo, Marco
Hu, Yaowen
Zhang, Mian
Berggren, Karl K
Lončar, Marko
Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction
title Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction
title_full Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction
title_fullStr Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction
title_full_unstemmed Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction
title_short Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction
title_sort cavity electro optics in thin film lithium niobate for efficient microwave to optical transduction
url https://hdl.handle.net/1721.1/142769
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