搜索结果: 1-15 共查到“工学 WDM”相关记录288条 . 查询时间(0.187 秒)
A 33mW 100Gbps CMOS Silicon Photonic WDM Transmitter Using Off-Chip Laser Sources
A 33 mW 100 Gbps CMOS Silicon Photonic WDM Transmitter On-Chip Laser Sources
2014/11/6
We report an ultra-low power 100Gbps silicon photonic WDM transmitter tunable with off-chip laser sources. The hybrid CMOS transmitter consists of eight 12.6Gbps WDM channels and consumes a total on-c...
A 400 Gb/s WDM Receiver Using a Low Loss Silicon Nitride AWG Integrated with Hybrid Silicon Photodetectors
A 400 Gb/s WDM Receiver a Low Loss Silicon Nitride AWG Integrated Hybrid Silicon Photodetectors
2014/11/6
A heterogeneously integrated WDM receiver based on an AWG demultiplexer and hybrid silicon/InGaAs detectors is presented in a novel platform that combines hybrid silicon components with ultra-low loss...
Single-carrier 400G interface and 10-channel WDM transmission over 4,800 km using all-ETDM 107-Gbaud PDM-QPSK
Single-carrier 400G interface 10-channel WDM transmission over 4,800 km all-ETDM 107-Gbaud PDM-QPSK
2014/11/6
We transmit all-electronically multiplexed 107-Gbaud polarization-multiplexed quadrature-phase-shift-keying over 4,800-km using coherent detection based on a real-time oscilloscope with 63-GHz electro...
32-bit/s/Hz Spectral Efficiency WDM Transmission over 177-km Few-Mode Fiber
32-bit/s/Hz Spectral Efficiency WDM Transmission over 177-km Few-Mode Fiber
2014/11/6
We transmit 32 WDM channels over 12 spatial and polarization modes of 177 km few-mode fiber at a record spectral efficiency of 32 bit/s/Hz. The transmitted signals are strongly coupled and recovered u...
基于交叉复用技术的OFDM-WDM光传输系统的性能分析
OFDM 交叉复用 宰阅酝 光传输系统
2016/8/5
基于正交频分复用(OFDM)与波分复用(WDM)的基本原理,构建了一套基于OFDM技术的WDM传输系统的系统模型,并对其相关系统性能进行了理论分析。基于维纳相位噪声模型,文章对OFDM系统中相位噪声引起的公共相位误差和子载波间干扰进行了分析,在此基础上深入分析了基于交叉复用OFDM技术的OFDM子载波间干扰的消除方法,降低相位噪声对系统性能的影响。最后结合理论分析结果对系统模型的相关性能进行模拟计...
基于相干光正交频分复用的WDM传输系统及其性能分析
光通信 相干光正交频分复用 波分复用 长距离传输
2013/10/15
相干光正交频分复用由于其良好的传输性能成为近年来光传输领域的研究热点，波分复用技术可以在光纤中通过增加并行波长的数量来提高系统的容量，将CO-OFDM和WDM技术结合，可以构造出高速率、大容量、低成本的光传输网络。文章首先对基于CO-OFDM的WDM传输系统的理论模型和基本原理进行了研究，然后对基于CO-OFDM的100Gb/s×32-信道WDM传输系统进行了仿真分析。并研究了该系统的传输性能。结...
WDM网络中基于优先级的多任务波长路由分配算法
多任务 优先级 路由波长分配
2014/3/24
提出了一种在WDM网络中基于优先级的多任务波长路由分配算法。算法设计旨在提高光网络资源的利用率、降低网络请求阻塞率。分析了任务请求的路由类型以及负载容量对请求优先级划分的影响方式，给出了网络请求优先级划分策略，结合网络的实时状态提出了一种基于优先级的多任务波长路由分配算法。仿真结果表明，该算法相比现有算法降低了网络请求阻塞率，提高了资源利用率。
基于多令牌协议航电WDM光环网波长分配方法
波分复用(WDM) 路由与波长分配(RWA) 牌协议
2012/6/18
针对航空电子光网络的实时性问题,建立了航空电子波分复用(WDM)环网模型,以实时消息流矩阵作为网络的输入,依据静态光网络最小化波长数目的优化目标,提出了一种基于多令牌协议的光网络波长分配方法,并推导了航电光网络中光通道的端到端传输时延计算公式。通过对理论计算和仿真结果的分析,此协议下的波长分配方法在网络中可以实现波长重用,比传统环网的波长数目平均降低了58.1%,优化了波长数目,并且多令牌控制协议...
HOPSMAN: An Experimental Testbed System for a 10-Gb/s Optical Packet-Switched WDM Metro Ring Network
2011/11/18
For future WDM MANs, optical packetswitching has been considered to be a promising paradigm that efficiently supports a wide range of Internet-based applications having time-varying and high bandwidth...
WDM up-conversion employing frequency quadrupling in optical modulator
optical modulator simultaneous WDM millimeter-wave
2011/11/17
Optical millimeter-wave generation and up-conversion are essential to Radio-over-Fiber (RoF) communication systems [1-7]. With the rapidly increasing bandwidth requirements for next generation multime...
Comparison and analysis of codes for remodulation WDM-PON with adaptive code selection
Line codes Code efficiency WDM-PON Remodulation
2016/12/2
In a remodulation PON, the upstream signal quality can be improved when the downstream signal is coded. But low code efficiency may result in network congestion in downlink. Based on the downlink traf...
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 ...
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...
A Novel Scheme for Seamless Integration of ROF System with OFDM-CPM WDM Passive Optical Network
Networks Fiber optics communications
2015/5/26
A novel scheme to generate, transmit and receive an optical OFDM-CPM signal in the architecture for seamless integration of ROF system with 4 × 2.5Gb/s WDM-PON is proposed and experimentally validated...
Broadband Ubiquitous Network Based on RoF-DAS over WDM-PON
Fiber optics communications Networks combinatorial network design
2015/5/26
This report is the first demonstration of RoF-DAS over WDM-PON with TDM techniques to realize a broadband ubiquitous wireless access with a gigabit-class throughput. The optical transmission performan...