Efficient, high-power, and radially polarized fiber laser.
We demonstrate an ytterbium-doped fiber laser that emits high-power radially polarized light efficiently. In this study, a photonic crystal grating (PCG) was used as a polarization-selective output coupler, and the power of the radially polarized laser reached 2.42 W with a slope efficiency of 45.9% and a polarization purity of 96%. The results reveal that the inclusion of the PCG mirror into the fiber laser are particularly promising for generating high-power radially polarized light efficiently in view of its many important applications.
Lin
Di
D
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
Xia
Kegui
K
Li
Jianlang
J
Li
Ruxin
R
Ueda
Ken-ichi
K
Li
Guoqiang
G
Li
Xiaojun
X