Abstract
This Letter presents a high-power 1018 nm ytterbium-doped fiber laser (YDFL) with optimized parameters. A record output power reaching 805 W was achieved, along with a light-to-light efficiency of 64.9% and a beam quality factor of . Further, a higher efficiency of 82.8% of 1018 nm YDFL pumped by wavelength-stabilized laser diodes for the first time, to the best of our knowledge, was shown. At last some attempts were made in bidirectional pumping structure. In this Letter, all the measured spectra showed strong amplified spontaneous emission suppression, and the power curves indicated the potential for further power scaling.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
Yakup Midilli, O. Benjamin Efunbajo, Bartu şimşek, and Bülend Ortaç
Appl. Opt. 56(25) 7225-7229 (2017)
Christoph Ottenhues, Thomas Theeg, Katharina Hausmann, Mateusz Wysmolek, Hakan Sayinc, Jörg Neumann, and Dietmar Kracht
Opt. Lett. 40(21) 4851-4854 (2015)
Hu Xiao, Jinyong Leng, Hanwei Zhang, Liangjin Huang, Jiangming Xu, and Pu Zhou
Appl. Opt. 54(27) 8166-8169 (2015)