PULSE Timing Distribution System

  • Below attosecond timing jitter and timing drift
  • Up to 10 km fiber link length (longer custom links available on request)
  • Standard 8 -16 links per unit (scalable to >100 links)
  • Push-Button Operation
  • No User Intervention required


Timing jitter<5fs RMSWithin 35 μHz - 1 MHz bandwidth, between two stabilized fiber links
Fiber link length (up to) 10kmLonger Links on request
Fiber links per PULSE TDS platform 8Scalable to an arbitrary number of links by combining several platforms together
Fiber typePMSM available on request
Power per client> 10mWAverage power available at each fiber end
Optical wavelength1550 ± 50 nmOperating at pulsed mode
Pulse repetition rate 100 - 1000MHzTailored to the frequency of interest (harmonics of facility frequency)
Dimensions (L x W x H) 1.5 x 0.8 x 0.3 m3depends on customer requirements
Rack for Control SystemIncludedTemperature-controlled
Integrated feedback IncludedOptimized PID parameters
Control system interfaces EPICSTango and/or customized as required
Auto lockIncluded

Measurement data

Timing drift
TDS Schematic
Timing Jitter
Timing Drift


Precise synchronization of distributed RF and laser sources in facilities such as:

  • Free-Electron-Lasers
  • Particle Accelerators
  • Radio Telescope Arrays
  • Laser Amplifier Chains
  • Ultrafast Electron Diffraction Experiments
  • Ultrafast Laser Labs


PULSE timing distribution system (TDS) enables sub-femtosecond distribution of timing signals to remote locations. It takes advantage of the inherently low noise pulse trains of a mode-locked laser (i.e. optical master oscillator, or OMO in short) and uses it as its timing signal which can be referenced to an optical or RF clock. The carefully selected OMO timing signal is transferred through fiber-optic timing links to multiple end stations where transmission delays are detected with attosecond resolution using Cycle’s patented balanced optical cross-correlators (BOC) and actively compensated.

At the output of the stabilized fiber links, either an ultrafast laser or a microwave source can be tightly synchronized to the output, thereby to the OMO timing signal. This can be done with Cycle’s patented TCBOC (Two Color Balanced Optical Cross-correlator for optical-optical synchronization) or BOMPD (Balanced Optical Microwave Phase Detector, for RF-optical synchronization). Naturally, PULSE has its own control system that fully automates the whole process and logs all critical system performance data, providing 24/7, 365 days sub-femtosecond timing distribution and synchronization from the click of a button.

Please contact our team of timing experts for your customization needs.

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Data Sheet PULSE


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