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An integrated laser system for manipulating trapped ions qubits.

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Title: An integrated laser system for manipulating trapped ions qubits.
Authors: Ye, Wei-Ran1,2,3,4 (AUTHOR), Cui, Jin-Ming1,2,3,4 (AUTHOR) jmcui@ustc.edu.cn, Chen, Yan1,2,3 (AUTHOR), Chen, Yi-Long1,2,3 (AUTHOR), Li, Rui-Rui1,2,3 (AUTHOR), Huang, Yun-Feng1,2,3,4 (AUTHOR) hyf@ustc.edu.cn, Li, Chuan-Feng1,2,3,4 (AUTHOR), Guo, Guang-Can1,2,3 (AUTHOR)
Source: Optics & Laser Technology. Aug2025, Vol. 186, pN.PAG-N.PAG. 1p.
Subjects: Third harmonic generation, Ultraviolet lasers, Molecular physics, Nonlinear optics, Molecular gas lasers, Raman lasers
Abstract: In experiments with atomic qubits encoded in the hyperfine levels of cold atoms or ions, the generation and control of multiple laser frequencies are often required for laser cooling and qubit manipulation. In this work, we demonstrate a laser system that integrates laser cooling, qubit initialization and detection, and Raman operations into a single setup, utilizing fiber laser technology and nonlinear optics. Specifically, a 369 nm laser for preparing and detecting 171 Yb + ions, and a 554 nm laser for qubit Raman manipulation, are generated by modulating a seed laser at 1108 nm through a fiber electro-optic modulator (EOM), amplified by a Yb-doped fiber amplifier, and then converted to 369 nm and 554 nm using two sequentially placed periodically-poled nonlinear crystals. This method offers significant flexibility and scalability, as different laser frequencies can be generated by adding specific radio-frequency signals to the electronic system, without altering the optical setup. The switching time between laser frequency channels is measured at 6.5 ns. With a modulation bandwidth of 20 GHz, this approach can accommodate the hyperfine splittings of various ion species. Overall, This scheme optimizes the optical configuration for atom and ion operations, minimizes insertion losses, and provides an efficient multi-channel laser frequency generation solution, making it highly beneficial for atomic and ionic quantum information experiments. [ABSTRACT FROM AUTHOR]
Copyright of Optics & Laser Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 184124544
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  Data: An integrated laser system for manipulating trapped ions qubits.
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  Data: <searchLink fieldCode="AR" term="%22Ye%2C+Wei-Ran%22">Ye, Wei-Ran</searchLink><relatesTo>1,2,3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cui%2C+Jin-Ming%22">Cui, Jin-Ming</searchLink><relatesTo>1,2,3,4</relatesTo> (AUTHOR)<i> jmcui@ustc.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Yan%22">Chen, Yan</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Yi-Long%22">Chen, Yi-Long</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Rui-Rui%22">Li, Rui-Rui</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Yun-Feng%22">Huang, Yun-Feng</searchLink><relatesTo>1,2,3,4</relatesTo> (AUTHOR)<i> hyf@ustc.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Chuan-Feng%22">Li, Chuan-Feng</searchLink><relatesTo>1,2,3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Guang-Can%22">Guo, Guang-Can</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Optics+%26+Laser+Technology%22">Optics & Laser Technology</searchLink>. Aug2025, Vol. 186, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Third+harmonic+generation%22">Third harmonic generation</searchLink><br /><searchLink fieldCode="DE" term="%22Ultraviolet+lasers%22">Ultraviolet lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+physics%22">Molecular physics</searchLink><br /><searchLink fieldCode="DE" term="%22Nonlinear+optics%22">Nonlinear optics</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+gas+lasers%22">Molecular gas lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Raman+lasers%22">Raman lasers</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In experiments with atomic qubits encoded in the hyperfine levels of cold atoms or ions, the generation and control of multiple laser frequencies are often required for laser cooling and qubit manipulation. In this work, we demonstrate a laser system that integrates laser cooling, qubit initialization and detection, and Raman operations into a single setup, utilizing fiber laser technology and nonlinear optics. Specifically, a 369 nm laser for preparing and detecting 171 Yb + ions, and a 554 nm laser for qubit Raman manipulation, are generated by modulating a seed laser at 1108 nm through a fiber electro-optic modulator (EOM), amplified by a Yb-doped fiber amplifier, and then converted to 369 nm and 554 nm using two sequentially placed periodically-poled nonlinear crystals. This method offers significant flexibility and scalability, as different laser frequencies can be generated by adding specific radio-frequency signals to the electronic system, without altering the optical setup. The switching time between laser frequency channels is measured at 6.5 ns. With a modulation bandwidth of 20 GHz, this approach can accommodate the hyperfine splittings of various ion species. Overall, This scheme optimizes the optical configuration for atom and ion operations, minimizes insertion losses, and provides an efficient multi-channel laser frequency generation solution, making it highly beneficial for atomic and ionic quantum information experiments. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Optics & Laser Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.optlastec.2025.112694
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Third harmonic generation
        Type: general
      – SubjectFull: Ultraviolet lasers
        Type: general
      – SubjectFull: Molecular physics
        Type: general
      – SubjectFull: Nonlinear optics
        Type: general
      – SubjectFull: Molecular gas lasers
        Type: general
      – SubjectFull: Raman lasers
        Type: general
    Titles:
      – TitleFull: An integrated laser system for manipulating trapped ions qubits.
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            NameFull: Ye, Wei-Ran
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            NameFull: Cui, Jin-Ming
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            NameFull: Chen, Yan
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            NameFull: Chen, Yi-Long
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            NameFull: Li, Rui-Rui
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            NameFull: Huang, Yun-Feng
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            NameFull: Li, Chuan-Feng
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          Dates:
            – D: 01
              M: 08
              Text: Aug2025
              Type: published
              Y: 2025
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              Value: 00303992
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              Value: 186
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