2500 km-10 Gbps RZ transmission system based on dispersion compensation CFBGs without electric regenerator

作     者：Jihong CAO Yong CHEN Ting CHEN Shuisheng JIAN 

作者机构：Key Lab of All Optical Network and Advanced Telecommunication Network of EMC Beijing Jiaotong University Institute of Lightwave Technology Beijing Jiaotong University 

出 版 物：《Frontiers of Optoelectronics》 (光电子前沿(英文))

年 卷 期：2008年第1卷第Z2期

页      面：219-222页

学科分类：070207[理学-光学] 07[理学] 0702[理学-物理学] 

基　　金：jointly supported by the National 863 Plan Project (No. 2001AA122012) the National Natural Science Foundation of China (Grant No. 60337010) 

主　　题：return to zero (RZ) signal chirped fiber Bragg grating (CFBG) dispersion compensation power penalty 

摘      要：The characteristics of chirped fiber Bragg gratings（CFBGs） are optimized so that the ripple coefficient of the power reflectivity spectrum and group time delay are less than 1 dB and |± 15| ps, group delay is about 2600 ps/nm, polarization module dispersion is very small, PMD 2 ps,-3 dB bandwidth is about0.35 nm, and insertion loss is about 4–5 d Bm. Using dispersion compensation CFBG, a 2500 km-10 Gbps RZ optical signal transmission system on G.652 fiber was successfully demonstrated without an electric regenerator by optimizing dispersion management and loss management. The RZ optical signal was generated through a two-stage modulation method. At 2081 km, the power penalty of transmission is about 3 dB(conditions: RZ signal, BER = 10-12, PRBS = 1023-1); At 2560 km, the power penalty is about 5 dB. It is superior to the system using NRZ under the same conditions.