High-brightness 9xxnm fiber coupled diode lasers

Rui Liu; Xiaochen Jiang; Thomas Yang; Xiaoguang He; Yanyan Gao; Jing Zhu; Tujia Zhang; Weirong Guo; Baohua Wang; Zhijie Guo; Luyan Zhang; Louisa Chen

doi:10.1117/12.2080506

13 March 2015 High-brightness 9xxnm fiber coupled diode lasers

Rui Liu, Xiaochen Jiang, Thomas Yang, Xiaoguang He, Yanyan Gao, Jing Zhu, Tujia Zhang, Weirong Guo, Baohua Wang, Zhijie Guo, Luyan Zhang, Louisa Chen

Author Affiliations +

Proceedings Volume 9348, High-Power Diode Laser Technology and Applications XIII; 93480V (2015) https://doi.org/10.1117/12.2080506
Event: SPIE LASE, 2015, San Francisco, California, United States

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.

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Rui Liu, Xiaochen Jiang, Thomas Yang, Xiaoguang He, Yanyan Gao, Jing Zhu, Tujia Zhang, Weirong Guo, Baohua Wang, Zhijie Guo, Luyan Zhang, and Louisa Chen "High-brightness 9xxnm fiber coupled diode lasers", Proc. SPIE 9348, High-Power Diode Laser Technology and Applications XIII, 93480V (13 March 2015); https://doi.org/10.1117/12.2080506

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