Fabrication of Er:YAG/Yb:YAG nanopowder-derived Er:Yb co-doped silica fibers from UV–curable composites and their application in 1550-nm fiber lasers

Baoluo Zheng; Fuxin Qi; Jing Yang; Biao Li; Jinming Liu; Xin Zhang; Pu Wang

doi:10.1117/12.2614271

4 March 2022 Fabrication of Er:YAG/Yb:YAG nanopowder-derived Er:Yb co-doped silica fibers from UV–curable composites and their application in 1550-nm fiber lasers

Baoluo Zheng, Fuxin Qi, Jing Yang, Biao Li, Jinming Liu, Xin Zhang, Pu Wang

Author Affiliations +

Proceedings Volume 11981, Fiber Lasers XIX: Technology and Systems; 1198102 (2022) https://doi.org/10.1117/12.2614271
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

Er/Yb co-doped YAG nanopowders-derived silica fibers (YNDSFs) are fabricated from UV-curable composites and achieve 1550-nm laser generation with active fiber length of 1 cm. The UV-curable nanocomposites are consisted of 40 wt% home-made Er:YAG/Yb:YAG nanopowders and 60 wt% polymer resins. The Er:YAG/Yb:YAG nanopowders are fabricated by coprecipitation method with diameters in the range of 25 - 165 nm. An Er:YAG/Yb:YAG–polymer hybrid core rod was polymerized using high power UV-lamps, and was drawn to Er/Yb co-doped fiber in silica cladding by melting-in-tube method after debound process to remove organics. The absorption coefficients of the Er/Yb co-doped fiber were measured to be 17 dB cm^-1 and 3.2 dB cm^-1 at 976 nm and 1530 nm, respectively. The background loss was 0.05 dB cm^-1 at 1200 nm. A linear fiber laser cavity was constructed with different length of Er/Yb co-doped fiber and a pair of FBGs (reflectivity: 99 % and 94 %) to quantify the laser performance. The maximum output powers were 7.5 mW and 1.5 mW with active fiber length of 6 cm and 1 cm, respectively. This scheme is expected to be an effective approach for obtaining Er:Yb co-doped fiber with high pump absorption for the generation of 1550-nm single-frequency fiber lasers.

Conference Presentation

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Baoluo Zheng, Fuxin Qi, Jing Yang, Biao Li, Jinming Liu, Xin Zhang, and Pu Wang "Fabrication of Er:YAG/Yb:YAG nanopowder-derived Er:Yb co-doped silica fibers from UV–curable composites and their application in 1550-nm fiber lasers", Proc. SPIE 11981, Fiber Lasers XIX: Technology and Systems, 1198102 (4 March 2022); https://doi.org/10.1117/12.2614271

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