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1 February 2024 Effects of AlInGaN electron barrier layer with different aluminum components on the photoelectric properties of GaN-based laser
Wenjie Wang, Mingle Liao, Siyuan Luo, Feng Huang
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Proceedings Volume 13068, Fifth International Conference on Optoelectronic Science and Materials (ICOSM 2023); 130681L (2024) https://doi.org/10.1117/12.3016335
Event: Fifth International Conference on Optoelectronic Science and Materials (ICOSM 2023), 2023, Hefei, China
Abstract
The effects of AlInGaN electron barrier layer (EBL) on the photoelectric properties of gallium nitride laser with reduced polarization of different aluminum components is numerically simulated by Crosslight Software. Compared with the Al0.322In0.08Ga0.598N EBL, the Al0.447In0.174Ga0.379N EBL with higher Al component improves the photoelectric performance of laser, achieving lower threshold current and higher output power. The reason is that the use of Al0.447In0.174Ga0.379N electron barrier material with higher Al component further reduces the polarization effect, thus improving the hole injection efficiency and reducing the electron leakage. Simulation results reveal that the threshold current decreases from 25.3mA to 22.6mA, and the output power increases from 98.3mW to 155.9mW. At the same time, the optical field distribution of higher Al component EBL structure laser is more concentrated in the active region, which further reduces the absorption loss, so that the optical confinement factor increases from 1.14% to 1.2%, and the slope efficiency also increases from 0.77W/A to 1.18W/A.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Wenjie Wang, Mingle Liao, Siyuan Luo, and Feng Huang "Effects of AlInGaN electron barrier layer with different aluminum components on the photoelectric properties of GaN-based laser", Proc. SPIE 13068, Fifth International Conference on Optoelectronic Science and Materials (ICOSM 2023), 130681L (1 February 2024); https://doi.org/10.1117/12.3016335
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KEYWORDS
Gallium nitride
Quantum wells
Barrier layers
Polarization
Conduction bands
Blue lasers
Quantum confinement
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