Manufacturing and reliability analysis of high-brightness blue light semiconductor laser

Yueting Wu; Fengchao Zhang; Xinning Zhang; Longtao Zhang; Zhenkun Yu; Chao Lang; Xiaohua Chen; Wei Ma

doi:10.1117/12.3005608

12 March 2024 Manufacturing and reliability analysis of high-brightness blue light semiconductor laser

Yueting Wu, Fengchao Zhang, Xinning Zhang, Longtao Zhang, Zhenkun Yu, Chao Lang, Xiaohua Chen, Wei Ma

Proceedings Volume 12867, High-Power Diode Laser Technology XXII; 128670D (2024) https://doi.org/10.1117/12.3005608
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

The blue semiconductor laser with a wavelength range of 450nm has developed rapidly in recent years. For high-reflective and high-thermal conductive materials represented by copper, gold and high-strength aluminum, the absorption rate of blue laser is 5-10 times than infrared lasers. Blue laser can achieve high-quality and consistent welding results, stable melt pools and no spatter. With the development of blue semiconductor laser technology, there is a growing demand for higher brightness and reliability. Based on the practical application background, we have designed and implemented a stable high-brightness blue laser. Through BPP theory and ZEMAX simulation calculation, 48pcs TO-packaged 5.5W blue lasers are coupled into a 105μm core diameter 0.22NA fiber using polarization and optical fiber coupling technology. More than 250W output power is obtained with coupling efficiency exceeds 90% and electro-optical efficiency exceeds 35%. The high brightness blue laser has passed various reliability tests including accelerated aging for 7000 hours, 85°C high temperature storage, -40°C low temperature storage, -20°C to approximately 70°C temperature cycling test, vibration and mechanical shock test. The stable high-brightness blue laser finds significant applications in medical, 3D printing and welding.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yueting Wu, Fengchao Zhang, Xinning Zhang, Longtao Zhang, Zhenkun Yu, Chao Lang, Xiaohua Chen, and Wei Ma "Manufacturing and reliability analysis of high-brightness blue light semiconductor laser", Proc. SPIE 12867, High-Power Diode Laser Technology XXII, 128670D (12 March 2024); https://doi.org/10.1117/12.3005608

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