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Proceedings Paper

Synchronization of two different repetition-rate mode-locked laser oscillators for laser-Compton x-ray generation
Author(s): Tatsuya Yanagida; Yohei Kobayashi; Kenichi Maeda; Shinji Ito; Fumio Sakai; Kenji Torizuka; Akira Endo
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Paper 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.

Paper Details

Date Published: 28 January 2004
PDF: 8 pages
Proc. SPIE 5194, Fourth-Generation X-Ray Sources and Ultrafast X-Ray Detectors, (28 January 2004); doi: 10.1117/12.504000
Show Author Affiliations
Tatsuya Yanagida, Femtosecond Technology Research Association (Japan)
Yohei Kobayashi, National Institute of Advanced Industrial Science and Technology (Japan)
Kenichi Maeda, Waseda Univ. (Japan)
Shinji Ito, Femtosecond Technology Research Association (Japan)
Fumio Sakai, Femtosecond Technology Research Association (Japan)
Kenji Torizuka, National Institute of Advanced Industrial Science and Technology (Japan)
Akira Endo, Femtosecond Technology Research Association (United States)


Published in SPIE Proceedings Vol. 5194:
Fourth-Generation X-Ray Sources and Ultrafast X-Ray Detectors
Zenghu Chang; Jean-Claude Kieffer; Jerome B. Hastings; Roman O. Tatchyn, Editor(s)

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