Cascaded optical frequency transfer over 500-km fiber link using regenerative amplifier
Deng Xue
1, 2, 3
, Jiao Dong-Dong
1, 2, 3
, Liu Jie
1, 3
, Zang Qi
1, 2, 3
, Zhang Xiang
1, 2, 3
, Wang Dan
1, 3
, Gao Jing
1, 2, 3
, Dong Rui-Fang
1, 2, 3
, Liu Tao
1, 3, †
, Zhang Shou-Gang
1, 2, 3
Allan deviation of single-span 500-km transfer (squares) and cascaded 500-km transfer (circles).