REFERENZSIGNAL-VERTEILUNG

• Main Authors: MEISSNER, PETER, BOUSONVILLE, MICHAEL
• Format: Patent
• Language: German
• Published: 15.01.2012

The invention relates to preferably a method and a system for synchronising cavities in a particle accelerator. A clock pulse is produced by a clock generator. The clock pulse is sent to at least one first reference point and one second reference point via a first optical line and a second optical line. The clock pulse is received in a first receiving unit and a second receiving unit which are associated with the first or the second reference point. In addition, a measuring signal of an optical wavelength differing from the optical wavelength of the clock pulse is produced. The measuring signal is injected into the first and second optical lines. A first reflector and a second reflector respectively associated with the first or second receiving units, and used for wavelength-selective reflection, enable the measuring signal to be respectively reflected. The measuring signal respectively returns on the transmission link and is extracted. The run time on the first and second optical lines is determined from the injected sent measuring signal and the extracted reflected measuring signal. Taking into account the respective run time on the optical lines, the phase positions of the clock pulse on the first and second reference points are synchronised with each other.