High-efficiency fiber laser at 1018 nm using Yb-doped phosphosilicate fiber.
A high-efficiency fiber laser at 1018 nm using homemade Yb-doped phosphosilicate fiber is demonstrated. The fiber shows blueshifted emission spectrum compared to Yb-doped aluminosilicate fiber, and is considered favorable for the short wavelength Yb-doped fiber laser. With a 7 m gain fiber, up to 22.8 W output at 1018 nm is achieved with an optical efficiency of 53%. The amplified spontaneous emission at 1030 nm is suppressed to 50 dB below the 1018 nm laser. This work shows that highly-efficient fiber laser at 1018 nm can be obtained with Yb-doped phosphosilicate fiber.
Shanghai Key Laboratory of Solid State Laser and Application, and Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China. wjhua1206@gmail.com
Jianhua
J
Wang
Gui
G
Chen
Lei
L
Zhang
Jinmeng
J
Hu
Jinyan
J
Li
Bing
B
He
Jinbao
J
Chen
Xijia
X
Gu
Jun
J
Zhou
Yan
Y
Feng