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Chinese Optics Letters, Volume. 21, Issue 11, 110008(2023)

Low-loss, high-purity, and ultrabroadband all-fiber LP41 mode converter employing a mode-selective photonic lantern [Invited]

Liang Chen, Huiyi Guo, Zekun Shi, Wenzhe Chang, Boyu Chen, Zhi Wang, and Yan-ge Liu*
Author Affiliations
  • Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China
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    (a) Schematic of the PL; (b) single-mode end of the PL.

    Fig. 1. (a) Schematic of the PL; (b) single-mode end of the PL.

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    Refractive index distribution of single-mode fibers.

    Fig. 2. Refractive index distribution of single-mode fibers.

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    (a) ERI of eigenmodes along the taper; (b) evolution of LP41even and LP41odd.

    Fig. 3. (a) ERI of eigenmodes along the taper; (b) evolution of LP41even and LP41odd.

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    (a) Image of the fabricated PL; (b) image of the cross section along the taper; (c) output of the PL at 1550 nm with different single-mode fibers as input.

    Fig. 4. (a) Image of the fabricated PL; (b) image of the cross section along the taper; (c) output of the PL at 1550 nm with different single-mode fibers as input.

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    (a) Intensity distributions of LP41even and LP41odd; (b) measured image, recovered image, and recovered component of LP41odd at 1310 and 1565 nm; (c) measured purity of LP41even and LP41odd at 1260–1360 nm and 1460–1640 nm.

    Fig. 5. (a) Intensity distributions of LP41even and LP41odd; (b) measured image, recovered image, and recovered component of LP41odd at 1310 and 1565 nm; (c) measured purity of LP41even and LP41odd at 1260–1360 nm and 1460–1640 nm.

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    ILs of LP41even and LP41odd.

    Fig. 6. ILs of LP41even and LP41odd.

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    Liang Chen, Huiyi Guo, Zekun Shi, Wenzhe Chang, Boyu Chen, Zhi Wang, Yan-ge Liu. Low-loss, high-purity, and ultrabroadband all-fiber LP41 mode converter employing a mode-selective photonic lantern [Invited][J]. Chinese Optics Letters, 2023, 21(11): 110008

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    Paper Information

    Special Issue: SPECIAL ISSUE ON OISE MAJOR JOINTLY ESTABLISHED BY TIANJIN UNIVERSITY AND NANKAI UNIVERSITY

    Received: Sep. 26, 2023

    Accepted: Oct. 20, 2023

    Published Online: Nov. 13, 2023

    The Author Email: Yan-ge Liu (ygliu@nankai.edu.cn)

    DOI:10.3788/COL202321.110008

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology