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Libera Reference Master Oscillator
Libera Reference Master Oscillator (RMO) is used as a low-noise and stable source of an RF signal which can serve for synchronization of different devices (e.g. LLRF stations in an accelerator).
Product Description
References
Libera Reference Master Oscillator (RMO) general description:
Libera RMO is used as a low-noise and stable source of an RF signal which can serve for synchronization of different devices (e.g. LLRF stations in an accelerator). The core of the device is a low-noise oven controlled crystal oscillator (OCXO) which guarantees long-term stability. Direct Digital Synthesis (DDS) technology is used to generate output RF signals at different frequencies. The DDS is utilized to provide frequency sweep functionality.
Optionally the Libera RMO can be locked to an external reference RF signal (e.g. a rubidium oscillator or GPS signal) by means of phase locked loop (PLL). In this way even better long-term stability can be achieved.
Benefits:
- Down to <60 fs RMS jitter integrated from 10 Hz to 10 MHz
- Frequency stability in the free-running mode 5*10^-11 (Allan Deviation)
- Customized to the user frequency
- Ethernet attached device, EPICS IOC
Compatible with other Libera products:
- Libera RMO Distribution Amplifier
- Libera Sync
- Libera LLRF
Libera Reference Master Oscillator performance
| Product code | LRMO1.D00.109 | LRMO1.D00.102 |
| Output signal frequency | 2800 MHz to 3120 MHz* | 50 Hz - 350 MHz* |
| Nominal output signal power | +18 dBm* | +15 dBm* |
| Integrated phase noise from 10 Hz to 10 MHz | < 60 fs RMS | < 90 fs RMS |
| Harmonic suppression | < 50 dBc up to 5th harmonic | < 50 dBc up to 5th harmonic |
| Frequency stability in free running mode (Allan Deviation) | 5*10^-11 | 5*10^-11 |
| Output power stability | 0.05 dB/°C | 0.05 dB/°C |
| Return loss | < -15 dB | < -15 dB |
| PPL lock time | < 30 s | < 30 s |
| Reference RF input | SMA-F, 50 Ω, 10 MHz, -20 dBm to + 10 dBm | SMA-F, 50 Ω, 10 MHz, -20 dBm to + 10 dBm |
| Stability operation temperature | 20-25 °C | 20-25 °C |
*Customizations are possible.
Libera Reference Master Oscillator is used at the following labs:
- Budker Institute of Nuclear Physics – SKIF (Russia)
- ELI-NP – VEGA (Romania)
