• Acta Photonica Sinica
  • Vol. 51, Issue 2, 0251205 (2022)
Jiachen LIU1、2, Yongzhen HUANG1、2、*, Youzeng HAO1、2, Ke YANG1、2, Yuede YANG1、2, and Jinlong XIAO1、2
Author Affiliations
  • 1State Key Laboratory of Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China
  • 2Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
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    DOI: 10.3788/gzxb20225102.0251205 Cite this Article
    Jiachen LIU, Yongzhen HUANG, Youzeng HAO, Ke YANG, Yuede YANG, Jinlong XIAO. Numerical Simulation of Noise Characteristics for WGM Microcavity Lasers(Invited)[J]. Acta Photonica Sinica, 2022, 51(2): 0251205 Copy Citation Text show less
    M1,M2,M3 and total output powers versus the biasing current
    Fig. 1. M1,M2,M3 and total output powers versus the biasing current
    The relative intensity noise spectra of the laser in different lasing states
    Fig. 2. The relative intensity noise spectra of the laser in different lasing states
    The photon density fluctuations at time domain when the laser is dual-mode lasing
    Fig. 3. The photon density fluctuations at time domain when the laser is dual-mode lasing
    FN spectra of the laser in different single-mode lasing states
    Fig. 4. FN spectra of the laser in different single-mode lasing states
    FN spectra and spectra of laser line shape in dual-mode lasing state at I = 51mA
    Fig. 5. FN spectra and spectra of laser line shape in dual-mode lasing state at I = 51mA
    The change of FN spectra of M1 and M2 when the injection current increases from 50 to 52 mA
    Fig. 6. The change of FN spectra of M1 and M2 when the injection current increases from 50 to 52 mA
    ParameterSymbolValue
    Current injection efficiencyη0.724
    Defect recombination coefficientA1×108 s-1[22
    Bimolecular recombination coefficientB01×10-10 cm3 s-1[22
    Bimolecular recombination coefficientB11×10-10 cm3 s-1
    Bimolecular recombination carrier coefficientB21×10-19 cm-3
    Auger recombination coefficientC07×10-27 cm6 s-1[22
    Speed of light in a vacuumc3×10-10 cm s-1
    Optical confinement factorΓz0.125
    Group refractive indexng3.5
    Spontaneous emission factorβ1×10-4[1
    Side-length of square microcavitya15 μm
    Thickness of the active regionda100 nm
    Internal lossαint10 cm-1[24
    Linewidth enhancement factorα324
    Q factor of cavityQ2.5×104
    Gain widthλg40 nm
    Material gain parameterg01 200 cm-1[1
    Carrier density at transparency(at 1 490 nm)Ntr1.7×1018 cm-3[1
    Logarithmic gain parameterNs0.092 Ntr cm-3[26
    Self-gain suppression coefficientεpp2.8×10-17 cm3[1
    Cross-gain suppression coefficientεpq3.3×10-17 cm3
    Table 1. Explanation and value of the various symbols
    Jiachen LIU, Yongzhen HUANG, Youzeng HAO, Ke YANG, Yuede YANG, Jinlong XIAO. Numerical Simulation of Noise Characteristics for WGM Microcavity Lasers(Invited)[J]. Acta Photonica Sinica, 2022, 51(2): 0251205
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