The layout consists of nine PM-16QAM transmitters, each acting as a subcarrier of the superchannel. The spectrum of the superchannel is shown in Fig. 2. Each of the transmitters operates at a symbol rate of 30GBauds. The channel spacing, 1.1 times the symbol rate, is close to the Nyquis...
通过搭建640 km的224 Gb/s、三信道波分复用偏振复用16阶正交振幅调制(WDM-PM-16QAM)相干检测实验系统,对本文提出的改进算法和几种已有算法的误码率(BER)和幅度矢量误差(EVM)性能进行分析。实验结果显示,改进算法的误码率性能略优于传统的两阶段算法,矢量幅度误差性能几乎保持不变,但是计算复杂度降低为传统两阶段...
对于PM-16QAM情况,子载波间隔为50 GHz,对于PM-32QAM和PM-64QAM情况,子载波间隔均为37.5 GHz,总共允许24 $ times $ 1.0、32 $ times $ 1.0和32 $ times $ 1.2Tb / s C频段上的超通道,导致潜在的C频段容量分别为24.0、32.0和38.4 Tb / s。现场传输后,与前向纠错(FEC)阈值所需的$ rm {OSNR_ {0.1...
A long-haul transmission of 1.28Tb/s quad-subcarrier PM-16QAM based superchannel (5.0bit/s/Hz) employing EDFA only/ EDFA-Raman amplification schemes is reported. Maximum recorded reach is 3,000km/ 2,050km and 3,350km/2,250km without and ... T Rahman,C Okonkwo,HD Waardt,... 被引量...
研究点推荐 Field Deployed Legacy Fiber PM-64QAM-Based Terabit Superchannels PM-16QAM- 站内活动 0关于我们 百度学术集成海量学术资源,融合人工智能、深度学习、大数据分析等技术,为科研工作者提供全面快捷的学术服务。在这里我们保持学习的态度,不忘初心,砥砺前行。了解更多>> ...
公司研制的基于A10 FPGA实现的频偏估计和补偿算法,消耗逻辑资源7.9K逻辑、14.9K分布式RAM资源、0乘法器,具有逻辑资源消耗小的优势,补偿频偏范围大,捕获频偏范围为+/-Baud/8,支持内核时钟速率440MHz,支持PM-QPSK/PM-16QAM/SP-QPSK/SP-16QAM等,支持波特率大于2.5Gaud。
This application note is a case study of two high-speed coherent WDM systems. A comparison is made between PM-QPSK and PM-16QAM, two of the most popular choices for the modulation formats in coherent fiber optic systems, at a baud rate of 32GBps per chan
本专利申请提出了一种256Gbps,PM16QAM信号光纤传输系统;其特征在于:该系统分为3个功能模块:16QAM信号发射端,光纤传输链路,16QAM接收检测端;16QAM信号发射端包括比特模式发生器,数模转换器模块,电放大器模块,I/Q调制器模块,激光器,偏振分束器,偏振合束器,以及数模转换器模块,电放大器模块和I/Q调制器模块的直流偏置...
We compare the transmission performance of three different optical fibers in separate 256 Gb/s PM-16QAM systems amplified with erbium doped fiber amplifiers (EDFAs) and distributed Raman amplification. The span length in each system is 100 km. The fibers studied include standard single-mode fiber,...
V. Curri et al., "Performance Analysis of Coherent 222-Gb/s NRZ PM-16QAM WDM Systems Over Long-Haul Links" IEEE PTL, 22 (5), 266-268, (2010)V. Curri, P. Poggiolini, A. Carena, and F. Forghieri, "Performance analysis of coherent 222-Gb/s NRZ PM-16QAM WDM systems over long-...