KEOPSYS recently released a bidirectional amplifier, long distance controllable, in a 1U rack.
This product allows very low input signal down to -45dBm and amplifies 12 to 21dB with a Noise Figure <5dB. Monitoring and amplification are performed by SSH (Secure Shell) and SNMP2 protocols.
A comparative advantage is the ability to deploy this KEOPSYS amplifier across a commercial telecom network without disruption. In this framework, KEOPSYS attended the REFIMEVE+ annual general meeting on September 21, 2015, a French consortium (Réseau Fibré Métrologique à Vocation Européenne) which strives for optical frequency metrology at the continental scale. REFIMEVE+ network permits long distance ultra-stable optical frequency transfer. REFIMEVE+ gives a dynamic impetus of this E.U. project with the support of MUQUANS a start-up from Bordeaux flagship of laser technology.
Since the beginning of 2015 (Year of Light) 2-way comparisons of 2 atomic Strontium clocks, located in Braunschweig and Paris, have been performed. It opens the route to a new frequency standard one thousand times more stable than the GPS.
Beyond applications we can mention tests of general relativity and temporal variation of fundamental constants, future redefinition of the second and navigation.