Optical-to-microwave synchronization with sub-femtosecond daily drift
- Resource Type
- Conference
- Authors
- Kalaydzhyan, Aram; Peng, Michael Y.; Ming Xin; Shafak, Kemal; Wenting Wang; Kartner, Franz X.
- Source
- 2016 European Frequency and Time Forum (EFTF) European Frequency and Time Forum (EFTF), 2016. :1-2 Apr, 2016
- Subject
- Components, Circuits, Devices and Systems
Signal Processing and Analysis
Ultrafast optics
Optical pulses
Nonlinear optics
Optical detectors
Phase locked loops
Radio frequency
- Language
We demonstrate a balanced optical-microwave phase detector (BOMPD) showing robust long-term optical-RF synchronization characteristics with sub-femtosecond residual timing drift over 24 hours under laboratory conditions without active temperature control of optical and electronic paths. Using this BOMPD, a 10.833 GHz Sapphire-loaded cavity oscillator (SLCO) was successfully disciplined by the pulse train from a 216.66 MHz femtosecond laser oscillator with a relative RMS jitter below one femtosecond integrated from 1 Hz to 1 MHz.