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Experimental Demonstration of All-Optical Polarization Multiplexing and Polarization Demultiplexing between Two 50-Gbit/s Channels and a Single 100-Gbit/s Channel
Fiber Optics Communications Nonlinear Optics Four-Wave Mixing
2010/6/9
We demonstrate all optical multiplexing and demultiplexing between two WDM 50-Gbit/s channels and a single Polarization Multiplexed 100-Gbit/s. Both On-Off-Keying and Differential Phase-Shift-Keying f...
All-optical parallelization for high sampling rate photonic ADC in fully digital radar systems
Ultrafast information processing Nonlinear optics four-wave mixing
2010/6/9
Optical samples of RF signals are all-optically parallelized for further processing in low-speed electrical digitizers. This technique enables high-rate sampling with no additional jitter and limited ...
Low phase noise laser source packaged in a low power consumption module for all optical sampling applications
Mode-Locked Lasers Semiconductor Lasers
2010/6/9
Using low power consumption photonic modules containing a low timing jitter optical laser source and an optical gate, we demonstrated potential all-optical sampling of a radio signal carried at >5GHz ...
Single-Chip All-Optical Packet Processor Based on All-Optical Flip-Flop Monolithically Integrated with MZI-SOA Switch
Integrated optics devices Optical switching devices
2010/6/9
We fabricate and demonstrate all-optical packet switching using a single photonic integrated circuit (PIC), which is constructed from monolithically integrated all-optical flip-flop and switch. Both 1...
Improved Aggregated Impairment Information for Bi-directional Lightpath Establishments
Fibre optics an optical communication All-optical networks
2010/6/8
We propose a set of physical parameters for GMPLS signaling to establish bi-directional paths.This reduces the amount of flooded information and speeds-up the path establishment while keeping its risk...
Distance-Adaptive Spectrum Allocation in Elastic Optical Path ?etwork (SLICE) with Bit per Symbol Adjustment
All-optical networks Fiber optics links subsystems
2010/6/8
We present a concept of spectrally-efficient optical networking with distance-adaptive spectral allocation by adjusting the number of modulation levels. We demonstrate it by routing 40 Gb/s optical pa...
En Route to Grouping-Constraint Free,Colorless Directionless ROADMs
Networks Optical Communications All-Optical Networks
2010/6/5
WSS-based ROADM architecture limits local transponder wavelengths to a grouping constraint.3D-switch-based architecture offers powerful solution without grouping constraint. This paper presents an upd...
Evaluation of the Fuse Effect Propagation in Networks Infrastructures with Different Types of Fibers
Optical communications All-optical networks Fiber optics links subsystems Fiber measurements
2010/6/4
The evaluation of the fuse effect propagation in fiber networks is analyzed. We show a relation between the void interval, the power density and the fused effect velocity for different types of optica...
Nonlinear Effects Prediction in Ultra-Dense WDM Systems Using Volterra Series
All-optical networks Nonlinear optics
2010/6/4
Volterra Series Transfer Function method is investigated to analyze fiber nonlinearities in ultra-dense WDM systems. For 340x1Gb/s at 3GHz grid using intensity-modulated signals, the method enables fa...
PCE-based vs. Distributed Set Up of Bidirectional Lightpaths in GMPLS-controlled Optical Networks
All-optical networks 060.4265 Networks wavelength routing
2010/6/4
We propose and evaluate a PCE-based architecture for bidirectional lightpath set up in GMPLS-controlled optical networks. The proposed architecture strongly improves the performance of the distributed...
多基线SAR三维成像的QR分解算法
多基线合成孔径雷达 三维成像 QR分解
2010/5/12
根据多基线合成孔径雷达(SAR)三维成像的信号模型,得到了利用高度向观测数据实现目标三维成像的矩阵方程,并引入QR分解算法求解矩阵方程,形成了多基线SAR三维成像的QR分解算法.使用该算法对多基线SAR仿真数据进行了三维成像实验.
基于相位分析的时间平均数字全息测振研究
关键词 时间平均全息干涉计量 数字全息 相位 振动测量
2010/3/25
传统的时间平均全息术通过对再现像光强分布的测量来实现振幅分布的检测,由于噪音影响往往得不到满意的结果.第一类零阶贝塞尔函数相位只有0和π两个取值,所以利用再现光场的相位可以确定振幅分布.理论分析发现,以往的讨论忽略了照明光之间位移引起的相位变化,研究通过叠加一个相位因子对此进行了修正,并利用贝塞尔函数平方的相位特点提出了消除该相位因子的办法.实验结果表明,该相位因子确实存在并影响测量,用本文所提出...
变形镜像差拟合能力的有限元仿真
变形反射镜 有限元法 像差拟合
2010/2/3
为了研究变形镜对于Ｚｅｒｎｉｋｅ多项式像差模式的拟合能力，利用有限元仿真方法，建立了
两种不同单元排布方式的变形镜有限元模型．通过给促动器施加理论位移，进行了仿真分析．结
果指出了不同的促动器排布方式与像差拟合能力之间的关系，同时表明５７点促动器密布的排列
方式已经能校正像差到λ／２０甚至更小，验证了促动器对变形镜“印透效应”等的影响．
Cross-talk much affects the quality of stereoscopic 3D images.The dynamic cross-talk effect of 3D moving images with various Z-direction speed was reported and discussed. Additionally, the visual dept...