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Proceedings Paper

High-brightness 9xxnm fiber coupled diode lasers
Author(s): Rui Liu; Xiaochen Jiang; Thomas Yang; Xiaoguang He; Yanyan Gao; Jing Zhu; Tujia Zhang; Weirong Guo; Baohua Wang; Zhijie Guo; Luyan Zhang; Louisa Chen
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Paper Abstract

We developed a high brightness fiber coupled diode laser module providing more than 140W output power from a 105μm NA 0.15 fiber at the wavelength of 915nm.The high brightness module has an electrical to optical efficiency better than 45% and power enclosure more than 90% within NA 0.13. It is based on multi-single emitters using optical and polarization beam combining and fiber coupling technique. With the similar technology, over 100W of optical power into a 105μm NA 0.15 fiber at 976nm is also achieved which can be compatible with the volume Bragg gratings to receive narrow and stabilized spectral linewidth. The light within NA 0.12 is approximately 92%. The reliability test data of single and multiple single emitter laser module under high optical load are also presented and analyzed using a reliability model with an emitting aperture optimized for coupling into 105μm core fiber. The total MTTF shows exceeding 100,000 hours within 60% confidence level. The packaging processes and optical design are ready for commercial volume production.

Paper Details

Date Published: 13 March 2015
PDF: 7 pages
Proc. SPIE 9348, High-Power Diode Laser Technology and Applications XIII, 93480V (13 March 2015); doi: 10.1117/12.2080506
Show Author Affiliations
Rui Liu, BWT Beijing Ltd. (China)
Xiaochen Jiang, BWT Beijing Ltd. (China)
Thomas Yang, BWT Beijing Ltd. (China)
Xiaoguang He, BWT Beijing Ltd. (China)
Yanyan Gao, BWT Beijing Ltd. (China)
Jing Zhu, BWT Beijing Ltd. (China)
Tujia Zhang, BWT Beijing Ltd. (China)
Weirong Guo, BWT Beijing Ltd. (China)
Baohua Wang, BWT Beijing Ltd. (China)
Zhijie Guo, BWT Beijing Ltd. (China)
Luyan Zhang, BWT Beijing Ltd. (China)
Louisa Chen, BWT Beijing Ltd. (China)

Published in SPIE Proceedings Vol. 9348:
High-Power Diode Laser Technology and Applications XIII
Mark S. Zediker, Editor(s)

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