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Conferences > CLEO_SI > 2021 > SW2B > SW2B.1

High power all-fiberized laser oscillator employing novel constant-cladding tapered-core Yb-doped fiber

Yun Ye, Xianfeng Lin, Xiaoming Xi, Baolai Yang, Chen Shi, Hanwei Zhang, Xiaolin Wang, Jinyan Li, and Xiaojun Xu

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Abstract

In this work, we have proposed and fabricated a novel constant-cladding tapered-core (CCTC) Yb-doped fiber, which has a constant cladding diameter of ~600 μm and spindle-shaped core diameter with a ~20.8 μm at both ends and ~36.0 μm in the middle. Based on this CCTC fiber, an all-fiberized laser oscillator was constructed and investigated experimentally. The output power was scaled to 1514 W with an optical-to-optical efficiency of ~64%, and the measured beam quality (M2 factor) is ~1.6. The further power scaling is promising by optimizing the structure of the CCTC fiber.

© 2021 The Author(s)

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