400Gbit/s高速大容量光通信系统单模光纤设计与制备  

Design and fabrication of single-mode optical fiber for 400 Gbit/s high-speed optical communication systems

作　　者：喻煌 李诗愈 刘志坚 余志强 莫琦 杨奇[2] 贺志学[2] 罗鸣[2] 

机构地区：[1]烽火藤仓光纤科技有限公司,武汉430073 [2]武汉邮电科学研究院光纤通信技术和网络国家重点实验室,武汉430074

出　　处：《光通信研究》2015年第2期27-30,共4页Study on Optical Communications

基　　金：国家"九七三"计划资助项目(2014CB340100;2014CB340101);国家"八六三"计划资助项目(2013AA031501)

摘　　要：介绍了一种大有效面积单模光纤的数值设计分析与PCVD(等离子体化学气相沉积)制备工艺,该光纤的有效面积达到133μm2,同时在1 550nm处衰减系数优化到0.183dB/km,弯曲损耗优化至0.45dB/圈(弯曲半径7.5 mm)。在双偏振DFT-S CO-OFDM 4QAM/16QAM(4进制/16进制正交振幅调制的离散傅里叶变换扩展相干光正交频分复用)调制信号下,对该光纤在100Gbit/s和400Gbit/s系统的误码率和Q值等传输性能进行了验证。结果表明,该光纤能有效改善最佳入纤功率和非线性效应,可使传输距离提升30%,能有效优化400Gbit/s传输系统,并且在FTTx领域有着广泛的应用前景。This letter numerically analyzes and experimentally confirms by PCVD process a large effective area single-mode optical fiber.Its effective area is as high as 133μm^2 with its attenuation coefficient optimized to 0.183dB/km and its bending loss to 0.45dB/turn at 7.5mm bending radius at 1 550 nm by using a trench structure.Furthermore,it verifies the propagation performances of the 100Gbit/s and 400Gbit/s systems such as BER and Qfactor with dual polarization DFT-S CO-OFDM4QAM/16 QAM modulated signals.The results show that this fiber effectively improves the optimum incident power and the nonlinear effects and extends the propagation distance by 30% and that can effectively optimizes the 400Gbit/s transmission system and has broad prospects of applications in FTTx.

关 键 词：大有效面积 400Gbit/s系统 低损耗 光纤 光纤到户 

分 类 号：TN818[电子电信—信息与通信工程]