搜索结果: 1-15 共查到“工学 Gbit/s”相关记录129条 . 查询时间(0.054 秒)
360 m 20 Gbit/s的W波段无线通信系统
W波段 光子上变频 QPSK信号 无线通信
2014/12/1
为了满足未来空间高速通信的迫切需求，进行了W波段(75~110 GHz)无线高速通信的研究。通信系统中采用光子上变频技术产生传输速率为20 Gbit/s的W波段QPSK信号，解决了电子器件带宽受限的瓶颈问题。在接收机端采用模拟下变频和先进数字信号处理技术，实现了无线传输360 m距离后信号的离线解调。最终系统的误码率小于硬判决前向纠错(FEC)门限3.8×10?3。
First Monolithic GaAs IQ Electro-optic Modulator, Demonstrated at 150 Gbit/s with 64-QAM
First Monolithic GaAs IQ Electro-optic Modulator 150 Gbit/s with 64-QAM
2014/11/6
We report on the first experimental demonstration of a GaAs IQ-modulator. Data rates of up to 150 Gbit/s are generated using QPSK, 16-QAM, 32-QAM and 64-QAM on a single carrier and polarization.
100 Gbit/s Wireless Link with mm-Wave Photonics
100 Gbit/s Wireless Link mm-Wave Photonics
2014/11/6
We demonstrate a single-input single-output photonic wireless link at 237.5 GHz with record 100 Gbit/s data transmission over 20 m. We use an optical heterodyne I/Q transmitter and a state-of-the-art ...
基于非线性效应的全光组播,以其能直接在光域内将信息从单节点路由到多目标节点而受到广泛关注。实验证实了利用色散平坦高非线性光子晶体光纤级联光学滤波器实现全光波长组播的新方案,通过使用窄带光学滤波器±次选择自相位调制加宽光谱分量,对速率为40 Gbit/s 的归零信号实现了极性保持、通道间距100 nm 的1 到6 信道全光波长组播。进一步研究了所设计全光波长组播器的动态特性,结果表明,它具有20 n...
为了提高基于SOA-MZI结构的全光异或门的输出消光比，优化系统性能，将SOA和HNLF相结合，在光通信系统设计软件OptiSystem7.0仿真平台上搭建了基于SOA-MZI的全光异或仿真实验模型，对两路40 Gbit/s的RZ码数据信号进行了全光异或仿真实验。利用HNLF的非线性效应设计了一种优化结构对基于SOA-MZI的全光异或输出信号进行优化，并对优化前后的信号时域波形图和系统眼图进行了比...
基于中心化梳状光源的125 Gbit/s全光OFDM-PON接入网架构
正交频分复用 无源光网络 梳状光谱发生器
2012/12/10
基于正交频分复用（orthogonal frequency-division multiplexing,OFDM）技术的无源光网络（passive optical network,PON）因其通信容量大、抗色散能力强等优点，已成为下一代基于PON接入网的解决方案之一.与此同时，40/100 Gbit/s以太网标准的制定也使100 Gbit/s光网络传输实用化成为可能.提出一种基于中心化梳状光源的全...
50 GHz Spaced 4 × 40 Gbit/s WDM Transmission over 700 km Using 6 ps Bandlimited RZ Signals
Telecommunications Fiber Optics Communications Wavelength Division Multiplexing (WDM) Optical Time Division Multiplexing (OTDM)
2013/1/30
In this paper, we present 50 GHz spaced 4 ×40 Gbit/s WDM transmission over 700 km using SMF-based Effective Area Enlarged Positive Dispersion Fiber in a recirculating loop. The paper uses bandlimited ...
在40 Gbit/s相干偏振复用正交相移键控（QPSK）传输系统中,为了补偿由于光纤中非线性效应引起的传输信号损伤,采用了基于Manakov方程的反向传播非线性补偿算法.传统的基于标量非线性薛定谔方程（NLSE）的反向传播算法忽略了偏振模色散（PMD）的作用,因此在偏振复用系统中不能补偿由于PMD引起的信号损伤|而基于Manakov方程的数字信号处理方法能够对PMD与克尔非线性效应的耦合作用进行补...
MLSE-Based Nonlinearity Mitigation for WDM 112 Gbit/s PDM-QPSK Transmissions with Digital Coherent Receiver
Coherent communications Fiber optics communications
2015/5/26
We investigate the performance of linear equalization combined with MLSE in long-haul transmission. In the nonlinear regime with high launch powers Q-factor improvement up to 1.4 dB is demonstrated wi...
Propagation Characteristics of Seven-core Fiber for Spatial and Wavelength Division Multiplexed 10-Gbit/s Channels
Fiber measurements Fiber optics communications
2015/5/26
Propagation characteristics of seven-core fiber were investigated for multiplexed signals of spatial-division and wavelength-division. Effect of chromatic dispersion and inter-core crosstalk were eval...
40-to-640-Gbit/s Multiplexing and Subsequent 640-to-10- Gbit/s Demultiplexing Using Cascaded Nonlinear Optical Loop Mirrors
Fiber optics communications Ultrafast nonlinear optics
2015/5/25
We experimentally demonstrate optical multiplexing of 40-Gbit/s channels at different wavelengths onto a single 640-Gbit/s channel and subsequent 640-to-10-Gbit/s demultiplexing using cascaded nonline...
101.5 Gbit/s Real-Time OFDM Transmitter with 16QAM Modulated Subcarriers
Optical communications Coherent communications
2015/5/25
We demonstrate for the first time a 101.5 Gbit/s single-polarization OFDM transmitter based on real-time FPGA processing. We modulate 58 subcarriers with 16QAM.
We have developed 1.3-μm, 50-Gbit/s EADFB lasers for future 400Gbit Ethernet. 10-and 40-km SMF transmission with clear eye openings over 14-nm wavelength range under 50-Gbit/s operation are demonstrat...
Engineering a 150 Gbit/s Optical Active Cable to Meet the Needs of the Data Center Environment
Fiber optics links subsystems Optical interconnects
2015/5/25
This paper presents the engineering considerations undertaken in the design of an optical active cable for use in the data center/HPC. We report the characteristics and testing results on our 150 Gbit...
High Speed High Temperature Stable 980 nm VCSELs Operating Error-Free at 25 Gbit/s up to 85 °C for Short Reach Optical Interconnects
Vertical cavity surface emitting lasers Optical communications
2015/5/25
We present high speed highly temperature stable 980 nm VCSELs for short reach optical interconnects operating error-free at 25 Gbit/s from room temperature up to 85 °C without adjustment of the drivin...