Low-Jitter Clock Distribution System

Libera Sync assures clock signal distribution with femtosecond jitter and fiber drift compensation. It is suitable for FEL and synchrotron light source machines.
Two units: Transmitter and Receiver
 
Femtosecond precision
excellent synchronization of geographically distributed systems

Simple commissioning and use
quick set-up and minimal start-up tuning
reduced cost for the clock distribution system
reduced operating cost
remote monitoring of Libera Sync operation
due to low complexity from the users point of view, easily integrated into the control system
minimal requirements for environmental stability and conditions

Compensation of fiber drifts
enables long-term stability

Compact, robust and high-performance device
small dimension: standard form factor 2U 19”
low power consumption – with each device consuming less than 50 W

Remote diagnostics
operation of 2 units spaced at max of 300m apart can be remotely monitored

Range of clock frequencies supported by Libera Sync:
1–5 GHz

Preliminary test results at Sincrotrone Trieste (FERMI@Elettra) revealed the following:

• Short-term measurement:
  Total jitter in a 300 m optical fiber was about 20 fs in the range of 100 Hz up to 10 MHz with high quality oscillator used as a signal source. Libera Sync added jitter was below 10 fs.
• Long-term measurement:
  Initial tests at FERMI@Elettra achieved 16 fs of RMS in 24 hours.

The instrument was developed in cooperation between Sincrotrone Trieste, the University of Ljubljana, and Instrumentation Technologies.