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High-Power, High-Efficiency GaSb-Based Laser with Compositionally Linearly Graded AlGaAsSb Layer
Y. H. Chen, C. A. Yang, T. F. Wang, H. G. Yu, J. M. Shi, X. B. Su, Y. Zhang, Y. W. Zhao, C. Z. Tong, D. H. Wu, Y. Q. Xu, H. Q. Ni and Z. C. Niu
2023
Source PublicationApplied Sciences-Basel
Volume13Issue:9Pages:12
AbstractWe propose a novel graded AlGaAsSb layer growth method to achieve a super-linear interface by precisely controlling the cell temperature and valve position. Atomically smooth surface and lattice-matched epitaxy was confirmed by AFM and the HRXRD characterization of the graded AlGaAsSb layer sample. With the inserted graded layer between the cladding and waveguide layers, high-power, high-efficiency GaSb-based laser emitters and laser bars were confirmed. The linearly graded interface layer smooths the potential barrier peak between the cladding and waveguide layers, which resulted in a low turn-on voltage of 0.65 V and an ultra-low series resistance of 0.144 ?. A maximum continuous-wave output power of 1.8 W was obtained with a high power conversion efficiency of 28% at 1.1 A and 12% at 8 A. A facet-coated laser bar was also fabricated with a record-high CW output power of 18 W. A high internal quantum efficiency of 83 was maintained at 40?, implying improved carrier injection efficiency, which benefits from the built-in electric field of the composition-graded AlGaAsSb layer.
DOI10.3390/app13095506
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Indexed Bysci
Language英语
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Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/67394
Collection中国科学院长春光学精密机械与物理研究所
Recommended Citation
GB/T 7714		 Y. H. Chen, C. A. Yang, T. F. Wang, H. G. Yu, J. M. Shi, X. B. Su, Y. Zhang, Y. W. Zhao, C. Z. Tong, D. H. Wu, Y. Q. Xu, H. Q. Ni and Z. C. Niu. High-Power, High-Efficiency GaSb-Based Laser with Compositionally Linearly Graded AlGaAsSb Layer[J]. Applied Sciences-Basel,2023,13(9):12.
APA Y. H. Chen, C. A. Yang, T. F. Wang, H. G. Yu, J. M. Shi, X. B. Su, Y. Zhang, Y. W. Zhao, C. Z. Tong, D. H. Wu, Y. Q. Xu, H. Q. Ni and Z. C. Niu.(2023).High-Power, High-Efficiency GaSb-Based Laser with Compositionally Linearly Graded AlGaAsSb Layer.Applied Sciences-Basel,13(9),12.
MLA Y. H. Chen, C. A. Yang, T. F. Wang, H. G. Yu, J. M. Shi, X. B. Su, Y. Zhang, Y. W. Zhao, C. Z. Tong, D. H. Wu, Y. Q. Xu, H. Q. Ni and Z. C. Niu."High-Power, High-Efficiency GaSb-Based Laser with Compositionally Linearly Graded AlGaAsSb Layer".Applied Sciences-Basel 13.9(2023):12.
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