High-Gain InAlGaAs Quaternary Quantum Wells for High-Power 760 nm Two-Junction VCSELs

Li, Chang-Jiu; Zhao, Feiyun; Tang, Zhenjie; Li, Chuanlin; Liu, Jilin; Ren, Aobo; Kuo, Hao‐Chung; Zhi, Junge

doi:10.1109/jqe.2023.3290602

Cited by 7 publications

(1 citation statement)

References 32 publications

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“…As of now, the highest differential quantum efficiency documented in experiments is the 620% realized through an 8-junction VCSEL, as we reported in 2022 39 . Therefore, based on this characteristic, current extensive research on multi-junction VCSELs focuses on enhancing the device’s differential quantum efficiency through multi-junction cascading, thereby achieving higher output power at the same driving current 34 , 35 , 39 . Multi-junction VCSELs, which offer high power and surface emission with a low-temperature wavelength shift coefficient, have consequently emerged as one of the optimal laser sources for all-solid-state LiDAR in autonomous intelligent terminals, and have been extensively utilized in recent years.…”

Section: Resultsmentioning

confidence: 99%

Multi-junction cascaded vertical-cavity surface-emitting laser with a high power conversion efficiency of 74%

Xiao,

Wang,

Liu

et al. 2024

Light Sci Appl

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High electro-optical conversion efficiency is one of the most distinctive features of semiconductor lasers as compared to other types of lasers. Its further increase remains a significant objective. Further enhancing the efficiency of edge-emitting lasers (EEL), which represent the highest efficiency among semiconductor lasers at present, is challenging. The efficiency of vertical cavity surface emitting lasers (VCSELs) has always been relatively low compared to EEL. This paper, combining modeling with experiments, demonstrates the potential of multi-junction cascaded VCSELs to achieve high efficiency beyond that of EELs, our simulations show, that a 20-junction VCSEL can achieve an efficiency of more than 88% at room temperature. We fabricated VCSEL devices with different numbers of junctions and compared their energy efficiency. 15-junction VCSELs achieved a maximum efficiency of 74% at room temperature under nanosecond driving current, the corresponding differential quantum efficiency exceeds 1100%, being the largest electro-optical conversion efficiency and differential quantum efficiency reported until now for VCSELs.

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Section: Resultsmentioning

confidence: 99%

Multi-junction cascaded vertical-cavity surface-emitting laser with a high power conversion efficiency of 74%

Xiao,

Wang,

Liu

et al. 2024

Light Sci Appl

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Harnessing the capabilities of VCSELs: unlocking the potential for advanced integrated photonic devices and systems

Pan,

Xun,

Zhou

et al. 2024

Light Sci Appl

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Vertical cavity surface emitting lasers (VCSELs) have emerged as a versatile and promising platform for developing advanced integrated photonic devices and systems due to their low power consumption, high modulation bandwidth, small footprint, excellent scalability, and compatibility with monolithic integration. By combining these unique capabilities of VCSELs with the functionalities offered by micro/nano optical structures (e.g. metasurfaces), it enables various versatile energy-efficient integrated photonic devices and systems with compact size, enhanced performance, and improved reliability and functionality. This review provides a comprehensive overview of the state-of-the-art versatile integrated photonic devices/systems based on VCSELs, including photonic neural networks, vortex beam emitters, holographic devices, beam deflectors, atomic sensors, and biosensors. By leveraging the capabilities of VCSELs, these integrated photonic devices/systems open up new opportunities in various fields, including artificial intelligence, large-capacity optical communication, imaging, biosensing, and so on. Through this comprehensive review, we aim to provide a detailed understanding of the pivotal role played by VCSELs in integrated photonics and highlight their significance in advancing the field towards efficient, compact, and versatile photonic solutions.

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Advances in high-power vertical-cavity surface-emitting lasers

Liu,

Zhao,

Tang

et al. 2024

J. Phys. D: Appl. Phys.

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Vertical-cavity surface emitting lasers (VCSELs) have emerged as a highly promising light source with extensive applications in various fields, including consumer electronics, optical communication, metrology, sensing and ranging. Their low-cost, high conversion efficiency, and compact footprint make them particularly attractive for widespread adoption. While considerable success has been made in enhancing the performance and speed of VCSELs for optical communications, achieving high-power VCSELs with properties such as high output power, single transverse mode operation, and temperature stability for remote sensing applications remains a challenging endeavor. This review aims to provide a comprehensive overview of the recent advancements in the development of high-power VCSELs. By examining the advancements in active materials, device designs, array configurations, this review seeks to shed light on the current state-of-the-art and potential avenues for further improvement in high-power VCSEL technology.

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High-Gain InAlGaAs Quaternary Quantum Wells for High-Power 760 nm Two-Junction VCSELs

Cited by 7 publications

References 32 publications

Multi-junction cascaded vertical-cavity surface-emitting laser with a high power conversion efficiency of 74%

Multi-junction cascaded vertical-cavity surface-emitting laser with a high power conversion efficiency of 74%

Harnessing the capabilities of VCSELs: unlocking the potential for advanced integrated photonic devices and systems

Advances in high-power vertical-cavity surface-emitting lasers

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