Fiber-optic link for the RF phase reference distribution system for the XFEL and TESLA projects

Krzysztof Czuba; Frank Eints; Matthias Felber; Stefan Simrock

doi:10.1117/12.610573

23 February 2005 Fiber-optic link for the RF phase reference distribution system for the XFEL and TESLA projects

Krzysztof Czuba, Frank Eints, Matthias Felber, Stefan Simrock

Proceedings Volume 5775, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments III; (2005) https://doi.org/10.1117/12.610573
Event: Wilga 2004, 2004, Wilga, Poland

Abstract

The UV Free-Electron Laser (UVFEL) and The TeV-Energy Superconducting Linear Accelerator (TESLA) projects will require phase synchronization of 0.1 ps short term (millisecond), 1 ps short term (minutes) and 10 ps long term (days). The stringent synchronization requirement of 10fs was given for the X-Ray Free- Electron Laser (XFEL). To fufill this requirement the XFEL may use a fiber laser as reference generator. But this requirement applies for a special location only, therefore the RF phase reference distribution system developed UVFEL and TESLA will also be used in the XFEL. The RF phase reference distribution system must deliver phase stable signals to hundreds of stations over a length of 33 km. Long, optical fiber based links are planned to be an important part of the entire distribution system. This paper describes the concept of a long optical link, with a feedback system suppressing long term drifts of the RF signal phase. Stability requirements are given and most important design issues affecting system performance are discussed. Finally, an experimental setup and measurement results demonstrating system performance is shown.

Citation Download Citation

Krzysztof Czuba, Frank Eints, Matthias Felber, and Stefan Simrock "Fiber-optic link for the RF phase reference distribution system for the XFEL and TESLA projects", Proc. SPIE 5775, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments III, (23 February 2005); https://doi.org/10.1117/12.610573

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