Optical infrastructure for precise time and stable frequency transfer

摘要

Time and frequency transfer is new usage of optical links. Recently, it started to deploy as a service of optical networks. Due to principle of time and frequency transfer, it is not possible implement it over data transport layer. The paper describes optical infrastructure for time and frequency transfer in the Czech Republic. The infrastructure is heterogeneous and utilizes resources of the Czech academic optical network. The paper also shows achieved results and indicates necessary steps for further transmission stability improvements.