Yb3+ doped large core silica fiber based on glass phase-separation technology

Yingbo Chu; Yu Yang; Yunxiu Ma; Nengli Dai; Jinyan Li; Luyun Yang

doi:10.1364/WSOF.2015.WW3A.6

Workshop on Specialty Optical Fibers and Their Applications
OSA Technical Digest (online) (Optica Publishing Group, 2015),
paper WW3A.6
•https://doi.org/10.1364/WSOF.2015.WW3A.6

Yb³⁺ doped large core silica fiber based on glass phase-separation technology

Yingbo Chu, Yu Yang, Yunxiu Ma, Nengli Dai, Jinyan Li, and Luyun Yang

Workshop on Specialty Optical Fibers and their Applications 2015

Hong Kong China
4–6 November 2015
ISBN: 978-1-943580-05-7

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Novel Materials and Functions II (WW3A)

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Y. Chu, Y. Yang, Y. Ma, N. Dai, J. Li, and L. Yang, "Yb3+ doped large core silica fiber based on glass phase-separation technology," in Workshop on Specialty Optical Fibers and Their Applications, OSA Technical Digest (online) (Optica Publishing Group, 2015), paper WW3A.6.

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Abstract

We report on the preparation and optical characteristics of an Yb³⁺ doped large core silica fiber with the active core prepared by glass phase-separation technology. The measurements show that the fiber has a high Yb³⁺ concentration of 9811 ppm by weight, a low background attenuation of 0.02dB/m and a strong absorption from Yb³⁺ about 5.5dB/m at 976 nm. The laser performance presents a high slope efficiency of 72.8% for laser emission at 1071nm within only 2.3m fiber length. It is suggested that the glass phase-separation technology shows great potential to prepare the heavily doped fibers with larger core and complex core structures.

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