Architecture
This equipment is a stand-alone device that enables to coherently regenerate an optical signal allowing long-haul dissemination of an ultra-stable optical frequency reference. Its architecture is based on the heterodyne phase-locking of a narrow spectral width laser diode on the reference signal. The station is equipped with low phase noise optical interferometer that perform a thorough characterization of the phase noise accumulated by the incoming signal, and a compensation system of this phase noise.
Intrinsic Performances (1m fiber link) and Specifications
| Relative short term frequency stability: | < 2e-17 @ 1 s |
| Relative long term frequency stability: | flicker < 5e-19 |
| Temperature sensitivity of the optical interferometers: | < 1 fs/°C |
| Operating wavelength: | 1542.14 nm nominal but any wavelength between 1530 and 1560 nm is available |
Additional features
- Fully Automated Phase-Lock Loops
- Polarization controller with automatic polarization adjustment
- Software remote control of all the physical parameters