Q-factor improvement of degenerate four-wave-mixing regenerators for ASE degraded signals  

作　　者：卢行 武保剑 耿勇 周星宇 孙凡 

机构地区：[1]Key Lab of Optical Fiber Sensing and Communications, Ministry of Education, University of Electronic Scienceand Technology of China, Chengdu 611730, China

出　　处：《Optoelectronics Letters》2017年第6期401-404,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61671108);the Fundamental Research Funds for the Central Universities(No.ZYGX2014J005);the Program for Changjiang Scholars and Innovative Research Team in University

摘　　要：All-optical regenerators can be used to suppress amplified spontaneous emission(ASE) noise introduced by cascaded erbium doped fiber amplifiers(EDFAs) in optical fiber communication systems and lead to the improvement of optical receiver sensitivity. By introducing the Q-factor transfer function(QTF), we evaluate the Q-factor performance of degenerate four-wave mixing(DFWM) regenerators with clock pump and reveal the differences between the optimal input powers determined from the static and dynamic power tranfer function(PTF) and the QTF curves. Our simulation shows that the clock-pump regnerator is capable of improving the Q-facor and receiver sensitivity for 40 Gbit/s ASE-degraded return-to-zero on-off keying(RZ-OOK) signal by 2.58 dB and 4.2 d B, respectively.

关 键 词：degraded DEGENERATE receiver mixing clock RETURN cascaded SUPPRESS capable SPONTANEOUS 

分 类 号：TN773[电子电信—电路与系统] TN929.11