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28 January 2004 Synchronization of two different repetition-rate mode-locked laser oscillators for laser-Compton x-ray generation
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Abstract
Timing synchronization between two independent Ti:sapphire mode-locked lasers has been developed for Laser-Compton X-ray generation. The lasers operated at different repletion frequencies of 119 MHz and 2856 MHz. The two lasers were actively synchronized with a phase-locked loop at a frequency of 2856 MHz. Fluctuation of the optical sum-frequency intensity was measured, and timing jitter was obtained. The rms timing jitter between the lasers was below 5 fs for several tens of seconds. The fluctuation was measured with a maximum observation bandwidth of 300 kHz. To improve long-time stability, a sum-frequency signal was fed back with a slow loop bandwidth, achieving long time operation for 1 hour with 5 fs synchronization.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tatsuya Yanagida, Yohei Kobayashi, Kenichi Maeda, Shinji Ito, Fumio Sakai, Kenji Torizuka, and Akira Endo "Synchronization of two different repetition-rate mode-locked laser oscillators for laser-Compton x-ray generation", Proc. SPIE 5194, Fourth-Generation X-Ray Sources and Ultrafast X-Ray Detectors, (28 January 2004); https://doi.org/10.1117/12.504000
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