利用CFBG补偿色散实现2015km8×10Gb/s光传输  

8×10Gb/s Transmission System over 2015 km with Dispersion Compensation by CFBG

作　　者：传输陈勇 曹继红[1] 谭中伟[1] 刘艳[1] 陈婷[1] 马丽娜[1] 常德远[1] 宁提纲[1] 裴丽[1] 简水生[1] 

机构地区：[1]北京交通大学光波技术研究所,北京100044

出　　处：《光电子．激光》2005年第8期942-946,共5页Journal of Optoelectronics·Laser

基　　金：国家"863"计划资助项目(2001AA122012);国家自然科学基金重点资助项目(60337010)

摘　　要：利用啁啾光纤光栅(CFBG)串联的多波长色散补偿器对长距离传输的8个信道信号进行色散补偿,各个信道波长符合ITU-T标准,波长间隔为100 G。系统采用掺Er3+光纤放大器(EDFA)作为功率放大器,在2 015 km的G.652光纤上无前向纠错(FEC)无电中继实现8×10 Gb/s零误码传输。结果表明,利用CFBG构成的色散补偿器各信道补偿一致性好,CFBG不但能通过滤除带外噪声有效减小长距离传输中由放大器产生的自发辐射噪声(ASE)的积累,提高传输信号的信噪比(OSNR),而且其较低的非线性特性有利于抑止信号劣化,从而有效提高长距离波分复用(WDM)的传输性能,扩展无电中继传输距离。The cascaded chirp fiber Bragg gratings （CFBGs）, with ITU-T standard wavelengths and wavelength grid were applied to compensate the dispersion of 8×10Gb/s WDM system. The ASE of the EDFA could be reduced,the OSNR of the transmitted signal could be increased and the fluctuation of the EDFA gain could be restrained in the certain scope by the OFBG employed in the system. Experiment of error-free 8×10Gb/s 2015 km transmission without foward error correction（FEC） and electric relay were demonstrated. In the transmission, simplex booster of EDFA was used and no other form of dispersion compensator was adopted. The experiment results show that after 2015 km transmission, the consistency of the dispersion compensating in each channel is perfect.

关 键 词：长距离传输 波分复用(WDM) 色散补偿 啁啾光纤光栅(CFBG) 无电中继 

分 类 号：TN929.11[电子电信—通信与信息系统]