Acta Optica Sinica, Volume. 40, Issue 3, 0314002(2020)
Analysis of Tapered Laser Amplifiers with Linear and Nonlinear Angle-Opening Structures
Figures & Tables(9)
Fig. 3. Light intensity distribution and gain distribution in amplifier with linear angle-opening structure when input current is 1 A. (a) Light intensity distribution; (b) gain distribution
Fig. 4. Light intensity distribution and gain distribution in amplifier with nonlinear angle-opening structure when input current is 1 A. (a) Light intensity distribution; (b) gain distribution
Fig. 5. Relations among output power, input current, and input power. (a) Input current-output power curve; (b) input power-output power curve
Fig. 6. Intensity in amplifier with nonlinear angle-opening structure at low output power
Fig. 7. Intensity of amplifier with linear angle-opening structure at low output power
Fig. 8. Intensity and gain lateral distribution in different angle-opening structures when z=1600 μm. (a) Nonlinear angle-opening structure; (b) linear angle-opening structure
Table 1. Parameters in simulation
View tableTable 1. Parameters in simulation
Parameter Value Parameter Value Beam waist radius ω0 /μm 2 Transparency current density J0 /(A·cm-2) 200 Central wavelength λ0 /nm 980 Internal quantum efficiency ηint 0.98 Effective index neff 3.34 Linear loss αi /cm-1 5 Effective differential gain Γβ /(cm·A-1) 0.093 Index thermal coefficient αT /K-1 0.000334
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Desheng Zeng, Li Zhong, Suping Liu, Xiaoyu Ma. Analysis of Tapered Laser Amplifiers with Linear and Nonlinear Angle-Opening Structures[J]. Acta Optica Sinica, 2020, 40(3): 0314002
Paper Information
Category: Lasers and Laser Optics
Received: Aug. 29, 2019
Accepted: Oct. 12, 2019
Published Online: Feb. 10, 2020
The Author Email: Zhong Li (zhongli@semi.ac.cn)
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