title: All-fiber mode-locked nanosecond laser employing intracavity chirped fiber gratings.
abstract: 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.
authors.affiliation: State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China.
authors.forename: Hushan
authors.initials: H
authors.lastname: Wang
authors.forename: Yishan
authors.initials: Y
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Zhao
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Ting
authors.initials: T
authors.lastname: Zhang
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Hu
authors.forename: Zhi
authors.initials: Z
authors.lastname: Yang
authors.forename: Hongjun
authors.initials: H
authors.lastname: Liu
authors.forename: Kailiang
authors.initials: K
authors.lastname: Duan
authors.forename: Xuemin
authors.initials: X
authors.lastname: Liu
authors.forename: Cheng
authors.initials: C
authors.lastname: Li
authors.forename: Deyuan
authors.initials: D
authors.lastname: Shen
authors.forename: Zhan
authors.initials: Z
authors.lastname: Sui
authors.forename: Bin
authors.initials: B
authors.lastname: Liu