Chinese Journal of Lasers, Volume. 50, Issue 23, 2301001(2023)

Analysis of High-Speed Modulation Performance of Photonic Crystal Surface-Emitting Blue Lasers

Yang Zhou... Shumin He, Wei Shen and Qifa Liu* |Show fewer author(s)
Author Affiliations
  • College of Communications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, Jiangsu, China
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    Figures & Tables(6)
    Flow chart of simulation modeling
    Calculated and simulated values of threshold current. (a) Threshold current versus volume of active region; (b) threshold current versus quality factor
    Structural diagram of GaN photonic crystal surface-emitting laser
    Experimental results. (a) 3 dB modulation bandwidth; (b) output power versus injection current; (c) energy consumption versus injection current
    • Table 1. Structure and parameters of GaN photonic crystal surface-emitting laser

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      Table 1. Structure and parameters of GaN photonic crystal surface-emitting laser

      ParameterContent
      Composition of photonic crystal layer

      Hole radius of 60 nm and 30 cycles for core region,

      hole radius of 52 nm and 130 cycles for cladding region

      Thickness of photonic crystal layer /nm20
      p-GaN layer thickness /nm80
      p-AlGaN layer thickness /nm35
      Composition of GaN/InGaN quantum well layer9 pairs GaN/InGaN
      Thickness of GaN/InGaN quantum well layer /nm10/3
      n-GaN layer thickness /nm100
      Active zone volume V /μm32.1206
      Resonant wavelength λ /nm452.823
      Quantum well restriction factor Γ0.13
      Quality factor Q7076
    • Table 2. Comparison of reported laser characteristic data

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      Table 2. Comparison of reported laser characteristic data

      LaserLaser volume /μm3Threshold current /mAMaximum 3 dB modulation bandwidth /GHzMinimum sending energy consumption /(fJ·bit-1Output power /mWResearch type
      Proposed laser2.12061.7642627800.795Theoretical prediction
      GaAs-based dual-lattice PESELs170.541.85Theoretical prediction
      LEAP300.185.5130.44Experiment
      Photonic crystal nanobeam lasers310.010.0004920.50.06Theoretical prediction
      VCSELs40.142028610Experiment
      LEAP320.047250.00411Experiment
      Si-based DFB lasers3316027 00017Experiment
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    Yang Zhou, Shumin He, Wei Shen, Qifa Liu. Analysis of High-Speed Modulation Performance of Photonic Crystal Surface-Emitting Blue Lasers[J]. Chinese Journal of Lasers, 2023, 50(23): 2301001

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    Paper Information

    Category: laser devices and laser physics

    Received: Feb. 7, 2023

    Accepted: Apr. 11, 2023

    Published Online: Dec. 7, 2023

    The Author Email: Qifa Liu (liuqf@njupt.edu.cn)

    DOI:10.3788/CJL230499

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