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Proceedings Paper

2-kW single-mode fiber laser employing bidirectional-pump scheme
Author(s): Fan Zhang; Wenyou Zheng; Pengyang Shi; Xinhai Zhang
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Paper Abstract

2kW single-mode fiber laser with two cascade home-made cladding light strippers (CLSs) by employing bidirectionalpump scheme has been demonstrated. 2.009 kW signal power is obtained when pump power is 2.63 kW and the slope efficiency is 76.6%. Raman Stokes light is less than -47 dB at 2.009 kW even with a 10-m delivery fiber with core/inner cladding diameter of 20/400um. The beam quality M2≤1.2 and the spectral FWHM bandwidth is 4.34nm. There is no transverse mode instability and the output power stability of ±0.14% is achieved by special thermal management for a more uniform temperature distribution on the Yb-doped gain fiber.

Paper Details

Date Published: 12 January 2018
PDF: 7 pages
Proc. SPIE 10619, 2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 106190G (12 January 2018); doi: 10.1117/12.2286036
Show Author Affiliations
Fan Zhang, Southern Univ. of Science and Technology (China)
NanKai Univ. (China)
Wenyou Zheng, Southern Univ. of Science and Technology (China)
Pengyang Shi, Southern Univ. of Science and Technology (China)
Harbin Institute of Technology (China)
Xinhai Zhang, Southern Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 10619:
2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Zhiyi Wei; Chunqing Gao; Pu Wang; Franz X. Kärtner; Jayanta Kumar Sahu; Liquan Dong, Editor(s)

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