Abstract
We demonstrate a double-clad fiber laser operating at 910 nm with a record power of 20 W. Laser emission on the three-level scheme is enabled by the combination of a small inner cladding-to-core diameter ratio and a high brightness pump source at 808 nm. A laser conversion efficiency as high as 44% was achieved in CW operating regime by using resonant fiber Bragg reflectors at 910 nm that prevent the lasing at the 1060 nm competing wavelength. Furthermore, in a master oscillator power-amplifier scheme, an amplified power of 14.8 W was achieved at 914 nm in the same fiber.
© 2013 Optical Society of America
Full Article | PDF ArticleMore Like This
L. V. Kotov, M. E. Likhachev, M. M. Bubnov, O. I. Medvedkov, M. V. Yashkov, A. N. Guryanov, J. Lhermite, S. Février, and E. Cormier
Opt. Lett. 38(13) 2230-2232 (2013)
Xiang Gao, Weijian Zong, Bingying Chen, Jian Zhang, Chen Li, Yizhou Liu, Aimin Wang, Yanrong Song, and Zhigang Zhang
Opt. Lett. 39(15) 4404-4407 (2014)
Baptiste Leconte, Hervé Gilles, Thierry Robin, Benoit Cadier, and Mathieu Laroche
Opt. Express 25(15) 18314-18319 (2017)