Laser & Optoelectronics Progress, Volume. 60, Issue 15, 1514007(2023)
Deep-Ultraviolet Laser-Diode Radiation Recombination Properties Based on Double-Concave Waveguide Layers
This paper proposes the use of double-concave waveguide layers for improving the radiative recombination characteristics of deep-ultraviolet (DUV) laser diodes (LDs). Simulation studies of four waveguide layer structures are performed using the Crosslight software. The results indicate that introducing a double-concave lower-waveguide layer improves the effective barrier height of the holes, effectively suppresses the leakage of holes from the multiple-quantum-well (MQW) region, and increases the concentration of carriers in the MQW region. The optimized structure enhances the radiative recombination rate and exhibits improved P-I characteristics and optical confinement factor, providing an effective solution for enhancing the performance of DUV LDs.
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Yuan Xu, Shiqin Wei, Pengfei Zhang, Yao Wang, Fang Wang, Yuhuai Liu. Deep-Ultraviolet Laser-Diode Radiation Recombination Properties Based on Double-Concave Waveguide Layers[J]. Laser & Optoelectronics Progress, 2023, 60(15): 1514007
Category: Lasers and Laser Optics
Received: May. 26, 2022
Accepted: Jul. 26, 2022
Published Online: Aug. 11, 2023
The Author Email: Wang Fang (iefwang@zzu.edu.cn), Liu Yuhuai (ieyhliu@zzu.edu.cn)