White Rabbit Single Fibre Bidirectional Transmission of Precise Time Using Unconventional Wavelengths

In this paper, we present results of experimental two way transmission of precise time over 400 km fully reciprocal bi-directionally amplified optical path outside the telecommunication C band. Used was the White Rabbit system, which combines synchronous Ethernet and Precise Time Protocol (IEEE-1588) however previously developed Time Transfer Adapters should provide slightly better performance.