title: Relative carrier-envelope phase stabilization of hybridly synchronized ultrafast Yb and Er fiber-laser systems with the feed-forward scheme.
abstract: Stabilization of the relative carrier-envelope (CE) phase for hybridly synchronized two-color fs Yb and Er fiber-laser systems is demonstrated for the first time by utilizing the feed-forward scheme based on an acousto-optic frequency shifter. The slow drift issues arising from the feed-forward scheme are solved by adding the in-loop relative CE frequency coarse stabilization via modulating the laser pump current. Sub-fs timing locking between the two-color pulses is still maintained due to the fast response and large locking range of hybrid synchronization. The approach provides an alternative way to obtain phase-stable synchronized two-color pulses with higher pulse energies.
authors.forename: Bo-Jyun
authors.initials: BJ
authors.lastname: Fong
authors.forename: Wei-Ting
authors.initials: WT
authors.lastname: Lin
authors.forename: Shang-Ying
authors.initials: SY
authors.lastname: Wu
authors.forename: Jin-Long
authors.initials: JL
authors.lastname: Peng
authors.forename: Wei-Wei
authors.initials: WW
authors.lastname: Hsiang
authors.forename: Yinchieh
authors.initials: Y
authors.lastname: Lai