Department of Physics, Fu Jen Catholic University, Taipei 24205, Taiwan.
Opt Lett. 2013 Sep 1;38(17):3456-9. doi: 10.1364/OL.38.003456.
We report experimental as well as theoretical investigation of the key factors that influence the relative timing jitter between hybrid synchronized ultrafast Yb and Er fiber laser systems. Experimental results show that, within the achievable synchronization range, the synchronization performance varies significantly with the relative injection timing between the 1 μm master and 1.5 μm slave pulses. This observation is in agreement with the insights obtained from the theoretical analysis, which identifies the retiming effect as a function of the initial condition of the master-slave pulse collision. By controlling the relative injection timing with a low-bandwidth intracavity feedback, relative timing jitter as low as 0.87 fs (within 1.9 MHz bandwidth) is successfully obtained.
我们报告了影响混合同步超快 Yb 和 Er 光纤激光系统之间相对定时抖动的关键因素的实验和理论研究。实验结果表明，在可实现的同步范围内，同步性能随 1 μm 主脉冲和 1.5 μm 从脉冲之间的相对注入定时显著变化。这一观察结果与理论分析的结果一致，该分析将重定时效应确定为主从脉冲碰撞初始条件的函数。通过使用低带宽腔内反馈控制相对注入定时，成功获得了低至 0.87 fs（在 1.9 MHz 带宽内）的相对定时抖动。
