光阴极RF腔注入器中激光脉冲的时间抖动
Investigation of laser pulse's timing jitter in RF photoinjector
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摘要: 介绍光阴极RF腔注入器中的驱动激光器，采用二极管泵浦的自锁模激光器，通过锁相，使输出激光脉冲的时间抖动小于2ps，实现激光脉冲同微波相位之间的严格同步，在实验上获得流强70A、能量2MeV、亮度4.4×1011A/(m2.rad2)的电子束。Abstract: In RF photoinjector, the diode-pumped self-mode-locked laser(GE-100) is used as the laser seeds in the driving laser, and the laser pulse's timing jitter is reduced down below 2ps by means of phase-locking technology. The detail of the timing jitter is discussed, the laser pulse's timing jitter is determined by the phase-noise of the driving signal and the instability of the mode-locked laser. So the high stable mode-locked laser and the driving signal of low phase-noise is required to the low timing jitter.
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Key words:
- photoinjectotr /
- photocathode /
- timing jitter
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