Research on Threshold Gain and Output Optical Power of Photonic Crystal Surface Emitting Lasers

Rusong Li; Huanyu Lu

doi:10.3788/LOP202259.0314004

Laser & Optoelectronics Progress, Volume. 59, Issue 3, 0314004(2022)

Research on Threshold Gain and Output Optical Power of Photonic Crystal Surface Emitting Lasers

Rusong Li^1,2 and Huanyu Lu^1、*

¹State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun , Jilin 130033, China

²Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

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Figures & Tables(7)

Fig. 1. Energy band diagram of two-dimensional square-lattice photonic crystal slab structure

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$Schematic diagram of Bragg diffraction conditions. (a) Bragg diffraction conditions of point X; (b) Bragg diffraction conditions of point M; (c) Bragg diffraction conditions of point Γ2 (in-plane); (d) Bragg diffraction conditions of point Γ2 (out-of-plane)$

Fig. 2. Schematic diagram of Bragg diffraction conditions. (a) Bragg diffraction conditions of point X; (b) Bragg diffraction conditions of point M; (c) Bragg diffraction conditions of point Γ₂ (in-plane); (d) Bragg diffraction conditions of point Γ₂ (out-of-plane)

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$Schematic diagram of the diffraction of the photonic crystal plane. (a) In-plane diffraction; (b) out-of-plane diffraction$

Fig. 3. Schematic diagram of the diffraction of the photonic crystal plane. (a) In-plane diffraction; (b) out-of-plane diffraction

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Fig. 4. Schematic diagram of PCSELs resonant cavity loss

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Fig. 5. Change curves of carrier density and photon density with time. (a) Change curve of carrier density with time; (b) change curve of photon density with time

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Fig. 6. Relationship between optical power and injection current in steady state

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Table 1. $Q$ values of four TE modes^[22]
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Table 1. $Q$ values of four TE modes^[22]
TE mode $Γ_{2 - 1}$ $Γ_{2 - 4}$ $Γ_{2 - 2}$
Q 163 106 101

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Rusong Li, Huanyu Lu. Research on Threshold Gain and Output Optical Power of Photonic Crystal Surface Emitting Lasers[J]. Laser & Optoelectronics Progress, 2022, 59(3): 0314004

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