Long-term stable passive synchronization of 50 µJ femtosecond Yb-doped fiber chirped-pulse amplifier with a mode-locked Ti:sapphire laser.
Long-term stable passive synchronization of 50 µJ femtosecond Yb-doped fiber chirped-pulse amplifier with a mode-locked Ti:sapphire laser.
复制标题
50 µJ 飞秒掺镱光纤啁啾脉冲放大器与锁模钛宝石激光器的长期稳定无源同步。
作者：
D. Yoshitomi;Xiangyu Zhou;Y. Kobayashi;H. Takada;K. Torizuka
报道了飞秒掺Yb光纤啁啾脉冲放大器（CPA）与锁模钛宝石激光器的长期稳定被动同步，用于光参量啁啾脉冲放大（OPCPA）系统的泵浦种子同步。光纤CPA系统提供波长为1035 nm、能量为50 µJ、持续时间为690 fs、重复率为0.4 MHz的脉冲。种子光纤振荡器被动同步锁模钛：蓝宝石激光脉冲注入到光纤振荡器的腔中的钛：蓝宝石激光器。为OPCPA泵浦准备了波长为518 nm、能量为18 µJ、持续时间为1.2 ps的二次谐波（SH）输出。泵浦（光纤SH）和种子（Ti：蓝宝石）之间的测量定时抖动为42 ± 14 fs，而两个振荡器输出之间的抖动为1.4 ± 0.5 fs。强大的同步技术允许长期稳定运行超过8小时。
We report long-term stable passive synchronization of a femtosecond Yb-doped fiber chirped-pulse amplifier (CPA) with a mode-locked Ti:sapphire laser for pump-seed synchronization of an optical parametric chirped-pulse amplification (OPCPA) system. The fiber CPA system delivers pulses with a wavelength of 1035 nm, energy of 50 µJ, and duration of 690 fs at a repetition rate of 0.4 MHz. The seed fiber oscillator is passively synchronized with a mode-locked Ti:sapphire laser by injection of the Ti:sapphire laser pulses into the cavity of the fiber oscillator. The second harmonic (SH) output with a wavelength of 518 nm, energy of 18 µJ, and duration of 1.2 ps was prepared for the OPCPA pump. The measured timing jitter between the pump (fiber SH) and the seed (Ti:sapphire) was 42 ± 14 fs, while the jitter between two oscillator outputs was 1.4 ± 0.5 fs. The robust synchronization technique allows long-term stable operation over 8 h.