Large mode area double-clad ytterbium-doped tapered fiber with low birefringence

Andrei Fedotov; Vasilii Ustimchik; Joona Rissanen; Teppo Noronen; Regina Gumenyuk; Yuri Chamorovskii; Alexander Kolosovskii; Victor Voloshin; Igor Vorob'ev; Valery Filippov

doi:10.1117/12.2577834

5 March 2021 Large mode area double-clad ytterbium-doped tapered fiber with low birefringence

Andrei Fedotov, Vasilii Ustimchik, Joona Rissanen, Teppo Noronen, Regina Gumenyuk, Yuri Chamorovskii, Alexander Kolosovskii, Victor Voloshin, Igor Vorob'ev, Valery Filippov

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Proceedings Volume 11665, Fiber Lasers XVIII: Technology and Systems; 116651T (2021) https://doi.org/10.1117/12.2577834
Event: SPIE LASE, 2021, Online Only

Abstract

We developed ytterbium-doped double-clad large mode area (MFD = 30 μm) spun tapered fibers with low internal birefringence and perfect beam quality (M² < 1.2). Picosecond MOPA system (95ps/100 MHz, 1064 nm) based on proposed active tapered fiber with output average power of 64 W (gain 32 dB) is demonstrated.

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Andrei Fedotov, Vasilii Ustimchik, Joona Rissanen, Teppo Noronen, Regina Gumenyuk, Yuri Chamorovskii, Alexander Kolosovskii, Victor Voloshin, Igor Vorob'ev, and Valery Filippov "Large mode area double-clad ytterbium-doped tapered fiber with low birefringence", Proc. SPIE 11665, Fiber Lasers XVIII: Technology and Systems, 116651T (5 March 2021); https://doi.org/10.1117/12.2577834

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