Ultra-large mode area single frequency anisotropic MOPA with double clad Yb-doped tapered fiber

Teppo Noronen; Andrei Fedotov; Joona Rissanen; Regina Gumenyuk; Oleg Butov; Yuri Chamorovskii; Konstantin Golant; Maxim Odnoblyudov; Valery Filippov

doi:10.1117/12.2288942

26 February 2018 Ultra-large mode area single frequency anisotropic MOPA with double clad Yb-doped tapered fiber

Teppo Noronen, Andrei Fedotov, Joona Rissanen, Regina Gumenyuk, Oleg Butov, Yuri Chamorovskii, Konstantin Golant, Maxim Odnoblyudov, Valery Filippov

Author Affiliations +

Proceedings Volume 10512, Fiber Lasers XV: Technology and Systems; 105121T (2018) https://doi.org/10.1117/12.2288942
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

We demonstrates all-fiber master oscillator – power amplifier delivered 70W output power at 1033.33nm with 8 kHz FWHM linewidth without any problems with SBS. The anisotropic ytterbium doped tapered double clad amplifier with 50 μm MFD and polarization extinction ratio about 30 dB is developed as a burst stage. The output radiation demonstrated perfect beam quality (M²=1.03/1.08).

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Teppo Noronen, Andrei Fedotov, Joona Rissanen, Regina Gumenyuk, Oleg Butov, Yuri Chamorovskii, Konstantin Golant, Maxim Odnoblyudov, and Valery Filippov "Ultra-large mode area single frequency anisotropic MOPA with double clad Yb-doped tapered fiber", Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105121T (26 February 2018); https://doi.org/10.1117/12.2288942

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