All-fiber mode-locked nanosecond laser employing intracavity chirped fiber gratings.
We demonstrate that nanosecond pulses are generated directly from an all-fiber mode-locked ytterbium-doped fiber laser. A pair of Chirped Fiber Gratings (CFGs) with different sign of dispersion is employed for intracavity dispersion management. Self-starting stabilized mode-locking operation is achieved by nonlinear polarization evolution (NPE). The 1.27 ns pulses are obtained after one CFG with large positive dispersion. The pulse energy is up to 15 nJ at a repetition rate of 3.48 MHz.
Wang
Hushan
H
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China.
Wang
Yishan
Y
Zhao
Wei
W
Zhang
Wei
W
Zhang
Ting
T
Hu
Xiaohong
X
Yang
Zhi
Z
Liu
Hongjun
H
Duan
Kailiang
K
Liu
Xuemin
X
Li
Cheng
C
Shen
Deyuan
D
Sui
Zhan
Z
Liu
Bin
B