Fiber-based multiple access timing signal synchronization technique

Yuan Yi-Bo^{1, 3}, Wang Bo^{1, 2, †}, Gao Chao^{1, 2}, Wang Li-Jun^{1, 2, 3}

(color online) Calibration results of all apparatuses: (a) LD and detector pair; (b) EDFAs; (c) optical circulators; (d) optical coupler 2; (e) optical coupler 1; (f) controlled delay boxes.