• Chinese Optics Letters
  • Vol. 20, Issue 4, 041301 (2022)
Xuyang Wang1、2、*, Yanxiang Jia1, Xubo Guo1, Jianqiang Liu1, Shaofeng Wang3, Wenyuan Liu4, Fangyuan Sun5, Jun Zou6, and Yongmin Li1、2、**
Author Affiliations
  • 1State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
  • 2Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
  • 3College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China
  • 4School of Science, North University of China, Taiyuan 030051, China
  • 5School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
  • 6College of Science, Zhejiang University of Technology, Hangzhou 310023, China
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    DOI: 10.3788/COL202220.041301 Cite this Article Set citation alerts
    Xuyang Wang, Yanxiang Jia, Xubo Guo, Jianqiang Liu, Shaofeng Wang, Wenyuan Liu, Fangyuan Sun, Jun Zou, Yongmin Li. Silicon photonics integrated dynamic polarization controller[J]. Chinese Optics Letters, 2022, 20(4): 041301 Copy Citation Text show less

    Abstract

    We designed and demonstrated experimentally a silicon photonics integrated dynamic polarization controller. The overall size of the dynamic polarization controller on chip is 2.830 mm×0.210 mm×1 mm. The modulation bandwidth is 30 kHz. By using a variable step simulated annealing approach, we achieve a dynamic polarization extinction ratio greater than 25 dB. A numerical simulation method was used to optimize the relevant parameters of the dynamic polarization controller. It is expected that the dynamic polarization controller can be utilized in fiber communication systems or silicon photonics integrated quantum communication systems to minimize the size and decrease the cost further.
    M0=(eiδ0/200eiδ0/2),M45=(cos(δ45/2)isin(δ45/2)isin(δ45/2)cos(δ45/2)),

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    M45=(cos(δ45/2)isin(δ45/2)isin(δ45/2)cos(δ45/2))=(1/21/21/21/2)(eiδ45/200eiδ45/2)(1/21/21/21/2).

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    P=V2/R,

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    Tn+1=pTn,

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    Sr={Sp+st·r,Sp+c·st·r,Spst·r,Sp00<Sp<3π3πSp,

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    st={0.16rad,0.08rad,0.03rad,0.008rad,0.1<Ist10.01<Ist0.10.001<Ist0.01Ist0.001,

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    θ=c·P+θbias,

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    ΔV=R2cVΔθ.

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    Xuyang Wang, Yanxiang Jia, Xubo Guo, Jianqiang Liu, Shaofeng Wang, Wenyuan Liu, Fangyuan Sun, Jun Zou, Yongmin Li. Silicon photonics integrated dynamic polarization controller[J]. Chinese Optics Letters, 2022, 20(4): 041301
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