Influence of Guided Wave Mode on Output Characteristics of Tapered Diode Laser

Qinghe Yuan; Hongqi Jing; Suping Liu; Xiaoyu Ma; Xiaohui Ma

doi:10.3788/CJL202148.0901001

Chinese Journal of Lasers, Volume. 48, Issue 9, 0901001(2021)

Influence of Guided Wave Mode on Output Characteristics of Tapered Diode Laser

Qinghe Yuan^2,3, Hongqi Jing^2、*, Suping Liu², Xiaoyu Ma^2,3, and Xiaohui Ma¹

¹Key Laboratory of High Power Semiconductor Laser for National Defense Technology, Changchun University of Science and Technology, Changchun, Jilin 130022, China

²National Engineering Research Center for Optoelectronic Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083,China

³College of Materials Science and Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China

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Figures & Tables(7)

$Structural diagrams of tapered semiconductor laser. (a) Gain waveguide; (b) refractive index waveguide$

Fig. 1. Structural diagrams of tapered semiconductor laser. (a) Gain waveguide; (b) refractive index waveguide

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$Front-facing optical field distributions of back cavity surfaces for two guided wave modes as well as their corresponding intensity distributions. (a) (b) Gain waveguide; (c) (d) refractive index waveguide$

Fig. 2. Front-facing optical field distributions of back cavity surfaces for two guided wave modes as well as their corresponding intensity distributions. (a) (b) Gain waveguide; (c) (d) refractive index waveguide

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$Optical field distributions of front cavity surfaces for two guided wave modes as well as their corresponding intensity distributions. (a) (b) Gain waveguide; (c) (d) refractive index waveguide$

Fig. 3. Optical field distributions of front cavity surfaces for two guided wave modes as well as their corresponding intensity distributions. (a) (b) Gain waveguide; (c) (d) refractive index waveguide

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$Far field distributions for two guided wave modes as well as their corresponding intensity distributions. (a) (b) Gain waveguide; (c) (d) refractive index waveguide$

Fig. 4. Far field distributions for two guided wave modes as well as their corresponding intensity distributions. (a) (b) Gain waveguide; (c) (d) refractive index waveguide

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Fig. 5. Beam quality factors for different guided wave modes

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$P-I-V curves for two guided wave modes. (a) Gain waveguide; (b) refractive index waveguide$

Fig. 6. P-I-V curves for two guided wave modes. (a) Gain waveguide; (b) refractive index waveguide

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Table 1. Related parameters of structure
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Table 1. Related parameters of structure
Waveguide type Size of single mode area /(μm×μm) Taper length /μm Width of output facet /μm Etching depth /μm Taper angle /(°)
Gain waveguide 800×3 1200 60 0 3
Refractive index waveguide 800×3 1200 60 0.5 3

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Qinghe Yuan, Hongqi Jing, Suping Liu, Xiaoyu Ma, Xiaohui Ma. Influence of Guided Wave Mode on Output Characteristics of Tapered Diode Laser[J]. Chinese Journal of Lasers, 2021, 48(9): 0901001

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