Precise Time Transfer Through Optical Fibre Utilizing White Rabbit Network

The present article describes an experimental study on precise and accurate time transfer through an optical fibre link for in house dissemination of time from an ultra-stable reference clock. The link consists of couple of single mode optical fibres and a White Rabbit (WR) link, using commercially available White Rabbit equipment along with necessary devices and software. We demonstrate time transfer accuracy remains well within 50 ps with respect to a primary clock over a very long period of time and the achieved link stability is about 10-16 at 2000 sec integration time.