Fabrication of side pump combiners when pumping with a laser diode and a fiber laser

Zhixian Li; Min Fu; Xiaofan Zhao; Hongye Li; Zilun Chen; Zefeng Wang; Jinbao Chen

doi:10.3788/COL202220.021401

Journals >Chinese Optics Letters >Volume 20 >Issue 2 >Page 021401 > Article

Chinese Optics Letters
Vol. 20, Issue 2, 021401 (2022)

Fabrication of side pump combiners when pumping with a laser diode and a fiber laser

Zhixian Li¹, Min Fu¹, Xiaofan Zhao¹, Hongye Li¹..., Zilun Chen^1,2,3,*, Zefeng Wang^1,2,3,** and Jinbao Chen^1,2,3|Show fewer author(s)

Author Affiliations

¹College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

²State Key Laboratory of Pulsed Power Laser Technology, Changsha 410073, China

³Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha 410073, China

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DOI: 10.3788/COL202220.021401 Cite this Article Set citation alerts

Zhixian Li, Min Fu, Xiaofan Zhao, Hongye Li, Zilun Chen, Zefeng Wang, Jinbao Chen, "Fabrication of side pump combiners when pumping with a laser diode and a fiber laser," Chin. Opt. Lett. 20, 021401 (2022) Copy Citation Text

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Abstract

Side pumping combiners are widely used in fiber laser schemes for their high coupling efficiency, low insertion loss, and multi-point pumping capability. However, side pumping combiners perform differently in coupling efficiency when pumping with a laser diode (LD) and a high-brightness 1018 nm Yb-doped fiber laser (YDFL). In this paper, for the first time, to the best of our knowledge, we investigated the different parameters to fabricate the

(2 + 1) \times 1

combiner with high coupling efficiency when pumping with an LD and a YDFL, respectively. After optimization, the maximum coupled pump power from one single-pump port of the combiner was 1200 W and 2730 W when pumping with a LD and a YDFL, respectively.