Design and fabrication of grating couplers for the optical addressing of trapped ions

In this work, silicon photonics structures for the optical addressing of trapped ion is developed for quantum computing applications. Grating-waveguide-grating structures of various designs are designed, and fabricated for various radius curvatures of 12, 15, 25 and 30 μm, respectively. From the o...

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Main Authors: Lim, Yu Dian, Li, Hong Yu, Zhao, Peng, Tao, Jing, Guidoni, Luca, Tan, Chuan Seng
Other Authors: School of Electrical and Electronic Engineering
Format: Journal Article
Language:English
Published: 2021
Subjects:
Online Access:https://hdl.handle.net/10356/151989
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author Lim, Yu Dian
Li, Hong Yu
Zhao, Peng
Tao, Jing
Guidoni, Luca
Tan, Chuan Seng
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Lim, Yu Dian
Li, Hong Yu
Zhao, Peng
Tao, Jing
Guidoni, Luca
Tan, Chuan Seng
author_sort Lim, Yu Dian
collection NTU
description In this work, silicon photonics structures for the optical addressing of trapped ion is developed for quantum computing applications. Grating-waveguide-grating structures of various designs are designed, and fabricated for various radius curvatures of 12, 15, 25 and 30 μm, respectively. From the optical measurements, gratings with radius of curvature of 25 and 30 μm exhibit lower power loss of 36.5 and 33.9 dB with better-focused beam profiles as compared to those with radius of curvature of 12 and 15 μm. The beam width from these gratings ranges between 17.31 to 41.54 μm, which provides the feasibility to perform optical addressing on 2 to 4 Sr+ ions trapped along the ground electrode of the ion trap.
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spelling ntu-10356/1519892021-08-12T04:44:55Z Design and fabrication of grating couplers for the optical addressing of trapped ions Lim, Yu Dian Li, Hong Yu Zhao, Peng Tao, Jing Guidoni, Luca Tan, Chuan Seng School of Electrical and Electronic Engineering Institute of Microelectronics, A*STAR Engineering::Electrical and electronic engineering Silicon Photonics Ion Trap Ion Qubits Quantum Computing In this work, silicon photonics structures for the optical addressing of trapped ion is developed for quantum computing applications. Grating-waveguide-grating structures of various designs are designed, and fabricated for various radius curvatures of 12, 15, 25 and 30 μm, respectively. From the optical measurements, gratings with radius of curvature of 25 and 30 μm exhibit lower power loss of 36.5 and 33.9 dB with better-focused beam profiles as compared to those with radius of curvature of 12 and 15 μm. The beam width from these gratings ranges between 17.31 to 41.54 μm, which provides the feasibility to perform optical addressing on 2 to 4 Sr+ ions trapped along the ground electrode of the ion trap. Agency for Science, Technology and Research (A*STAR) National Research Foundation (NRF) Published version This work was supported in part by the A*STAR Quantum Technology for Engineering program (A1685b0005), in part by the National Research Foundation, Singapore under its ANR-NRF Joint Grant Call (NRF2020-NRF-ANR073 HIT), and in part by the A∗STAR Institute of Microelectronics (IME) and Advanced Micro Foundry (AMF). ( 2021-08-12T04:41:15Z 2021-08-12T04:41:15Z 2021 Journal Article Lim, Y. D., Li, H. Y., Zhao, P., Tao, J., Guidoni, L. & Tan, C. S. (2021). Design and fabrication of grating couplers for the optical addressing of trapped ions. IEEE Photonics Journal, 13(4), 2200306-. https://dx.doi.org/10.1109/JPHOT.2021.3094646 1943-0655 https://hdl.handle.net/10356/151989 10.1109/JPHOT.2021.3094646 4 13 2200306 en A1685b0005 NRF2020-NRFANR073 HIT IEEE Photonics Journal © 2021 The Author(s). Published by IEEE. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/ application/pdf
spellingShingle Engineering::Electrical and electronic engineering
Silicon Photonics
Ion Trap
Ion Qubits
Quantum Computing
Lim, Yu Dian
Li, Hong Yu
Zhao, Peng
Tao, Jing
Guidoni, Luca
Tan, Chuan Seng
Design and fabrication of grating couplers for the optical addressing of trapped ions
title Design and fabrication of grating couplers for the optical addressing of trapped ions
title_full Design and fabrication of grating couplers for the optical addressing of trapped ions
title_fullStr Design and fabrication of grating couplers for the optical addressing of trapped ions
title_full_unstemmed Design and fabrication of grating couplers for the optical addressing of trapped ions
title_short Design and fabrication of grating couplers for the optical addressing of trapped ions
title_sort design and fabrication of grating couplers for the optical addressing of trapped ions
topic Engineering::Electrical and electronic engineering
Silicon Photonics
Ion Trap
Ion Qubits
Quantum Computing
url https://hdl.handle.net/10356/151989
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