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Conferences > ASSL > 2022 > JM4A > JM4A.7

Narrowband lasing in a multicore Yb-doped fiber with fs-inscribed FBG array

Alexey G. Kuznetsov, Alexey A. Wolf, Olga N. Egorova, Sergej L. Semjonov, Evgeny V. Podivilov, and Sergey A. Babin

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Abstract

Femtosecond-inscribed fiber Bragg gratings (FBGs) in a 7-core Yb-doped fiber forming complex highly-reflective mirror enable narrowband generation with 33W power at 50W LD pumping. With coupled cores the linewidth is ~0.1nm in all power range.

© 2022 The Author(s)

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