Chinese Optics Letters, Volume. 22, Issue 1, 011301(2024)

Experimental demonstration of a flexible-grid 1 × (2 × 3) mode- and wavelength-selective switch using silicon microring resonators and counter-tapered couplers

Dejun Kong1, Hao Lu1, Pengjun Wang2、*, Qiang Fu3, Shixun Dai1,4, Weiwei Chen1、**, Yuefeng Wang1, Bohao Zhang1, Lingxiao Ma1, Jun Li1, Tingge Dai5, and Jianyi Yang5
Author Affiliations
  • 1Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, China
  • 2College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
  • 3College of Science and Technology, Ningbo University, Ningbo 315300, China
  • 4Laboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China
  • 5Department of Information Science and Electronics Engineering and Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou 310027, China
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    Figures & Tables(10)
    (a) Schematic diagram of the flexible-grid 1 × (2 × 3) MWSS; (b) detailed drawing and (c) cross-sectional view of the proposed two-mode (de)multiplexer; (d) schematic diagram and (e) cross-sectional view of the mentioned silicon MRR; (f) structure of the proposed crossing waveguide.
    Working principle of forming the tunable BW.
    Simulated transmission spectra of the designed silicon-based flexible-grid 1 × (2 × 3) MWSS in the typical states.
    Simulated maximum IL, worst CT, and minimum ER of (a) the designed flexible-grid 1 × (2 × 3) MWSS or (b) the designed flexible-grid 1 × (2 × 3) MWSS cascaded with a mode multiplexer and six mode demultiplexers changing with ΔW.
    Microscope image of the fabricated module.
    Measured transmission spectra of the fabricated module.
    Measured dynamic response of the fabricated device.
    • Table 1. Typical States of the Presented Flexible-grid 1 × (2 × 3) MWSS in the Worst Situation

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      Table 1. Typical States of the Presented Flexible-grid 1 × (2 × 3) MWSS in the Worst Situation

      StatesOutput Ports
      O1O2O3O4O5O6
      1TE0-λ2TE0-λ3TE0-λ1TE1-λ2TE1-λ3TE1-λ1
      2TE0-λ3TE0-λ2TE0-λ1TE1-λ3TE1-λ2TE1-λ1
      3TE1-λ3TE0-λ2TE0-λ1TE0-λ3TE1-λ2TE1-λ1
      4TE0-λ2TE1-λ3TE1-λ1TE1-λ2TE0-λ3TE0-λ1
      5TE1-λ3TE0-λ2TE1-λ1TE1-λ2TE0-λ3TE0-λ1
      6TE1-λ2TE0-λ3TE1-λ1TE1-λ3TE0-λ2TE0-λ1
      7TE0-λ1TE1-λ2TE1-λ3TE1-λ1TE0-λ2TE0-λ3
      8TE1-λ1TE1-λ2TE1-λ3TE0-λ1TE0-λ2TE0-λ3
      9TE0-λ1λ3TE1-λ1λ3
      10TE0-λ2, λ3TE0-λ1TE1-λ2, λ3TE1-λ1
      11TE0-λ1, λ3TE0-λ2TE1-λ1, λ3TE1-λ2
      12TE0-λ1, λ2TE0-λ3TE1-λ1, λ2TE1-λ3
      13TE0-λ3TE0-λ1, λ2TE1-λ3TE1-λ1, λ2
      14TE0-λ2TE0-λ1, λ3TE1-λ2TE1-λ1, λ3
      15TE0-λ1TE0-λ2, λ3TE1-λ1TE1-λ2, λ3
      16TE0-λ1λ3TE1-λ1λ3
    • Table 2. Optimized Segments’ Widths for the Bus Waveguide in the Coupling Region

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      Table 2. Optimized Segments’ Widths for the Bus Waveguide in the Coupling Region

      SymbolValue/µmSymbolValue/µmSymbolValue/µm
      W00.85W10.85W20.74
      W30.75W40.78W50.71
      W60.62W70.62W80.58
      W90.59W100.45
    • Table 3. Optimized Segments’ Widths for the Taper in the Crossing Waveguide

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      Table 3. Optimized Segments’ Widths for the Taper in the Crossing Waveguide

      SymbolValue/µmSymbolValue/µmSymbolValue/µm
      WC00.45WC10.70WC20.86
      WC30.88WC40.90WC50.90
      WC60.96WC71.04WC81.16
      WC91.16WC101.16WC111.10
      WC121.06WC131.06WC140.90
      WC151.00
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    Dejun Kong, Hao Lu, Pengjun Wang, Qiang Fu, Shixun Dai, Weiwei Chen, Yuefeng Wang, Bohao Zhang, Lingxiao Ma, Jun Li, Tingge Dai, Jianyi Yang. Experimental demonstration of a flexible-grid 1 × (2 × 3) mode- and wavelength-selective switch using silicon microring resonators and counter-tapered couplers[J]. Chinese Optics Letters, 2024, 22(1): 011301

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    Paper Information

    Category: Integrated Optics

    Received: Jun. 7, 2023

    Accepted: Aug. 15, 2023

    Published Online: Jan. 2, 2024

    The Author Email: Pengjun Wang (wangpengjun@wzu.edu.cn), Weiwei Chen (chenweiwei@nbu.edu.cn)

    DOI:10.3788/COL202422.011301

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