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Laser & Optoelectronics Progress, Volume. 61, Issue 23, 2300004(2024)

Research Progress in Enhancing Optical Communication Quality Using Concave Echelle Grating as Demultiplexer

Xiang Fu1,2, Lin Zou1、*, Tianjun He1, Wenran Yue1, Ya Wang1, Shiqi Wang1, Hang Chen1, and Shengbao Zhan1
Author Affiliations
  • 1College of Physics and Electrical Engineering, Anqing Normal University, Anqing 246133, Anhui , China
  • 2School of Mechanical and Electrical Engineering, Chuzhou University, Chuzhou 239000, Anhui , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (16)
    Equations (4)
    References (39)
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    Figures & Tables(16)
    Structure diagram of concave grating demultiplexer

    Fig. 1. Structure diagram of concave grating demultiplexer

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    CEG structure diagram. (a) Overall structure of CEG demultiplexer on the chip; (b) side view near grating facet

    Fig. 2. CEG structure diagram. (a) Overall structure of CEG demultiplexer on the chip; (b) side view near grating facet

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    Schematic diagram of CEG demultiplexer on chip using Rowland circle construction

    Fig. 3. Schematic diagram of CEG demultiplexer on chip using Rowland circle construction

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    Schematic diagram of design of output waveguides near the grating normal

    Fig. 4. Schematic diagram of design of output waveguides near the grating normal

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    Schematic diagram of optimizing grating tooth structure. (a) Tooth center and length; (b) blaze angle; (c) curvature

    Fig. 5. Schematic diagram of optimizing grating tooth structure. (a) Tooth center and length; (b) blaze angle; (c) curvature

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    Schematic diagram of grating design with twostigmatic points

    Fig. 6. Schematic diagram of grating design with twostigmatic points

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    Schematic diagram of cascading multiple CEG demultiplexers

    Fig. 7. Schematic diagram of cascading multiple CEG demultiplexers

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    Schematic diagram of a demultiplexer with polarization compensation region

    Fig. 8. Schematic diagram of a demultiplexer with polarization compensation region

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    CEG demultiplexer with polarization compensation region

    Fig. 9. CEG demultiplexer with polarization compensation region

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    Schematic diagram of dual-grating system

    Fig. 10. Schematic diagram of dual-grating system

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    Schematic diagram of polarization independent design scheme for single grating demultiplexing

    Fig. 11. Schematic diagram of polarization independent design scheme for single grating demultiplexing

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    Schematic diagram of a flat-field receiving CEG demultiplexer

    Fig. 12. Schematic diagram of a flat-field receiving CEG demultiplexer

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    Spectral response of the demultiplexer with standard MMF

    Fig. 13. Spectral response of the demultiplexer with standard MMF

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    Schematic diagram of two-focus grating demultiplexer

    Fig. 14. Schematic diagram of two-focus grating demultiplexer

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    Schematic diagram of CEG demultiplexer

    Fig. 15. Schematic diagram of CEG demultiplexer

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    Schematic diagram of MMI structure with preshaping input

    Fig. 16. Schematic diagram of MMI structure with preshaping input

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    Xiang Fu, Lin Zou, Tianjun He, Wenran Yue, Ya Wang, Shiqi Wang, Hang Chen, Shengbao Zhan. Research Progress in Enhancing Optical Communication Quality Using Concave Echelle Grating as Demultiplexer[J]. Laser & Optoelectronics Progress, 2024, 61(23): 2300004

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    Paper Information

    Category: Reviews

    Received: Feb. 18, 2024

    Accepted: Apr. 3, 2024

    Published Online: Dec. 3, 2024

    The Author Email: Lin Zou (linzou2022@163.com)

    DOI:10.3788/LOP240694

    CSTR:32186.14.LOP240694

    Topics

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