Advances in high power high beam quality diode lasers

Zhang, Jun; Chen, Yongyi; Q, Li; Peng, Hangyu; Ning, Yin; Wang, Lijun

doi:10.1360/n972017-00352

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2023

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“…Semiconductor lasers have garnered significant interest among researchers due to their advantages, such as small size, long lifespan, high conversion efficiency, fast modulation rate, wide wavelength range, and ease of integration [1,2]. Over the course of their development, semiconductor lasers have found extensive use in various fields, including industrial production, military defense, and medical treatment [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Research Progress of Horizontal Cavity Surface-Emitting Laser

Liu

Song

Chen

et al. 2023

Sensors

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The horizontal cavity surface emitting laser (HCSEL) boasts excellent properties, including high power, high beam quality, and ease of packaging and integration. It fundamentally resolves the problem of the large divergence angle in traditional edge-emitting semiconductor lasers, making it a feasible scheme for realizing high-power, small-divergence-angle, and high-beam-quality semiconductor lasers. Here, we introduce the technical scheme and review the development status of HCSELs. Firstly, we thoroughly analyze the structure, working principles, and performance characteristics of HCSELs according to different structures, such as the structural characteristics and key technologies. Additionally, we describe their optical properties. Finally, we analyze and discuss potential development prospects and challenges for HCSELs.

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