Bidirectional optical amplifier for time transfer using bidirectional WDM transmission  

作　　者：DING Xuan WU Gui-ling ZUO Fa-xing CHEN Jian-ping 丁旋;吴龟灵;左发兴;陈建平(State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering,Shanghai Jiao Tong University)

机构地区：[1]State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering,Shanghai Jiao Tong University

出　　处：《Optoelectronics Letters》2019年第6期401-405,共5页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.61627817 and 61535006)

摘　　要：In this letter, we propose a bidirectional optical amplification scheme for fiber-optic time transfer based on bidirectional wavelength-division multiplexing(WDM) transmission. The proposed scheme employs single unidirectional erbiumdoped fiber amplifier(Uni-EDFA) for commercial optical networks to implement bidirectional optical amplification. Since including isolators, the effect of backscattering due to the accumulated amplification can be efficiently suppressed by the proposed amplifier. The proposed scheme is validated over different length fiber links in laboratory. Experimental results show that the proposed amplifier can support fiber-optic time transfer over several thousands of kilometers with an additional bidirectional delay difference fluctuation at picosecond magnitude.

关 键 词：AMPLIFIER FIBER OPTICAL 

分 类 号：TN722[电子电信—电路与系统]