Chinese Optics Letters, 2011, 9 (9): 091401, Published Online: Aug. 24, 2011
Diode-pumped 1 018-nm ytterbium-doped double-clad f iber laser Download: 1181次
Abstract
We report a 1 018-nm ytterbium-doped double-clad fiber laser pumped by 970-nm diode. A pair of fiber Bragg gratings with reflectivities of 99.9% and 9% at a center wavelength of 1 018.9 nm are employed as cavity mirrors. The ytterbium-doped double-clad fiber is a 2.6-m-long Liekki fiber. Laser output power of 7.5 W at 1 018 nm is obtained under the pump power of 59.2 W. The overall slope efficiency of the fiber laser is about 16%. This low slope efficiency is mainly due to the incomplete absorption of the pump power.
Zhen Li, Jun Zhou, Bing He, Xijia Gu, Yunrong Wei, Jingxing Dong, Qihong Lou. Diode-pumped 1 018-nm ytterbium-doped double-clad f iber laser[J]. Chinese Optics Letters, 2011, 9(9): 091401.