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10 W CW ytterbium-doped fiber laser with 4 ×
1 fused fiber bundle combiner |
| Jihuang ZHANG 1, Chao YANG 1, Chuan HUANG 1, Yuhua LI 1, Nengli DAI 1, Peixiang LU 1, Zuowen JIANG 2, Wei CHEN 2, Jinyan LI 2, |
| 1.Wuhan National
Laboratory for Optoelectronics, Huazhong University of Science and
Technology; 2.Fiberhome Telecommunication
Tech Co Ltd; |
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Abstract An ytterbium-doped double-clad fiber laser with one-end pumped by four 915 nm laser diodes (LDs) combined by a homemade multimode fused fiber bundle combiner is proposed. The combiner, fused by splicing four fiber pigtails from diodes, exhibits a good capability of low-loss and a high efficiency of 92.7%. The fiber laser, which can generate a continuous-wave (CW) up to 10.3 W output power at 1104 nm with a homemade D-shape inner cladding ytterbium-doped fiber, is demonstrated. The slope efficiency is about 65% and the optical-to-optical conversion efficiency with respect to the pump power is 46% at its maximum output laser power.
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Issue Date: 05 March 2009
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