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.
| Original language | English |
|---|---|
| Pages (from-to) | 149-156 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5194 |
| DOIs | |
| Publication status | Published - 2004 |
| Externally published | Yes |
| Event | Fourth-Generation X-Ray Sources and Ultrafast X-Ray Detectors - San Diego, CA, United States Duration: 2003 Aug 4 → 2003 Aug 6 |
Keywords
- Cross-correlation
- Laser-compton scattering
- Phase-locked loop
- Synchronization of mode-locked lasers
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering