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【期刊论文】Design of a multichannel ring network with tunable laser diodes and fixed optical detectors
周革, Wencai Jing, MEMBER SPIE, Yi-Mo Zhang, FELLOW SPIE, Ge Zhou
Opt. Eng, 42 (8): 2324-2330 (August 2003),-0001,():
-1年11月30日
A mugichannel ring is designed. Each sublayer network is connected to the dng with an access node (AN), which can transmit data at every wavelength with a tunable laser diode. The data transmission speed at each wavmength is 1.25Gbit/s. With eight wavelengths, a total bandwidth of 10Gbg/s can be obtained With a bandpass filter, the de-sired optical signal can be dropped down at the access node On receiving a data packet, the optical signal is split into two parts. One part is converted to an electrical signal and its destination address is extracted and vedtied. If the data packet belongs to the local subnatwork, it is received. Otherwise. it is retransmitted to the next access node with a selected wavelength. So pipelining data transmlssien can be achieved among different wavelengths. And this natwodt is a multipipeline structure. The data processing time is less than 30Ons, and all of the processing procedure is implemented via a fieid programmable gate array (FPGA). So the communication latency and communication overheads can be decreased. Meanwhile, the ring topology has good sca/ability. More wavelengths can he adopted for a large-scale network with more access nodes.
computer cluster, tunable laser diode, mutipipeline, bandwidth, scalability.,
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周革, Wencai Jing, Yimo Zhang, Ge Zhou
15 July 2002/Vol. 10, No.14/OPTICS EXPRESS,-0001,():
-1年11月30日
A new structure for bit synchronization in a tera-bit/s optical interconnection network has been designed using micro-electro-mechanical system (MEMS) technique. Link multiplexing has been adopted to reduce data packet communication latency. To eliminate link set-up time, adjustable optical delay lines (AODLs) have been adopted to shift the phases of the distributed optical clock signals for bit synchronization. By changing the optical path distance of the optical clock signal, the phase of the clock signal can be shifted at a very high resolution. A phase-shift resolution of 0.1ps can be easily achieved with 30-μm alternation of the optical path length in vacuum.
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周革, Tamg Femg. Jing Wencai, Zhang Yimo, Zhou Ge, Li Haifeng, Man Xiaoming, Jia Dagong
光子学报,2003,32(9):1156~1158,-0001,():
-1年11月30日
以白光麦克尔逊干涉仪对双折射保偏光纤的偏振耦合进行测试,并基于仪器结构建立了测试扫描结果的数学模型,分析及仿真了信噪比对耦合强度及耦合位置检测的影响大小及变化趋势。信噪比大于32Db,可满足偏振耦合测试的要求。
白光干涉, 偏振耦合, 信噪比, 保偏光纤
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【期刊论文】Design and analysis of a scalable optical interconnection network for a computer cluster
周革, Wencai Jing, Ge Zhou Yimo Zhang, FELLOW SPIE, Wei Liu, Jindong Tian, Xun Zhang, Haifeng Li, Nan Zhang
Optical Engineering, 40 (6), 2001,-0001,():
-1年11月30日
This paper descrities the dual layer scalable optical interconnentcion nitwork being developed at Tianjin University. The layer of the network is a multiwavelength bidirectional optical bus. Which has large bandwidth and low latency, The bus is made up of passive components. No wavelength-tunable devices are used As a result, the bus ponents. No wavelength-tunable devices are used As a result, the bus has a low communication latency that is mainly determined by the optical fiber length. The optical fiber length. The sublayer of the network is a single-wavelength ring, which has low communication latency and high scalability. In each ring. a wavelength routing node is designed for data transmission between the ring and the optical bus. Each node computer is connected to the ring throuth an optical network interface card. The communication latency inside the ring is decreased by using synchronous pipelining transmission.
Optical interconnection network, optical bus, communication latency, scalability, pipelining transmission.,
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【期刊论文】Design and implementation of a broadband optical rotary joint using C-lenses
周革, Wencai Jing, Dagong Jia, Feng Tang, Hongxia Zhang, Yimo Zhang, Ge Zhou, Jinlong Yu, Fanmin Kong, and Kun Liu
OPTICS EXPRESS, 12 (17), 2002,-0001,():
-1年11月30日
A broadband optical rotary joint (BORJ) was designed using Clenses. Its insertion loss was less than 2dB at both the 1300nm and 1550nm wavelength windows. Wavelength division multiplexing (WDM) technique was adopted to increase the number of data transmission channels. Hundreds of wavelength channels can be accommodated for data transmission through relatively rotating interfaces using this BORJ. The total data transmission rate through this BORJ can be more than 200Gbit/s. By using Dove prism, both space division multiplexing (SDM) and WDM techniques can be implemented simultaneously in the design of BORJ with C-lenses. This structure of BORJ has a low cost. It can be used for optical data transmission and optical sensing.
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