最新刊期
卷 ， 期 6 ， 2000
- 摘要：The performances of 10 Gbit/s optical transmission system in pre,post and symmetric-compensation are investigated with numerical simulation, and the effects of different compensation values and SPM on transmission system are analyzed. The results show that in the case of post-compesation the performance of proper under-compensation is better than that of full-compensation, but the performances of nearly full-compensation in pre- and symmetric-compensation are best and better than that in pre-compensation.关键词：dispersion compensation;self-phase modulation;pre-compensation;post-compensation;symmetric-compensath
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发布时间： - 摘要：The authors analyzed the factors which affect the output OSNR （Optical Signal-to-Noise Ratio） according to the expressions of OSNR and equivalent noise figure of DWDM system using cascade EDFAs.The reasons of difference in output OSNR between the channels were also discussed in this paper.关键词：cascade EDFA;DWDM;optical signal-to-noise ratio（OSNR）;noise figure（NF）
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- 156
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发布时间： - 摘要：This article introduces the meaning of the construction in Anhui Unicom’s transport network and the networking characteristics, the problems in the synchronization network management and the applications of DWDM in the future.关键词：transmission;network;synchronization network managemen
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发布时间： - 摘要：This paper studies the fault management in optical transport network （OTN） using the layering concept,with focus on the defect indication signal, including its source, transmission and termination. The optical supervisory channel （OSC） is so important that we think it should be taken as one independent sub-layer of the all-optical transport network （OTN） and discussed in this paper.关键词：optical transport network;layering;fault management;optical supervisory channel?
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发布时间： - 摘要：In this paper, we analyze the generation mechanism of the supercontinuum pulse source and the factors that influence it. Finally, its applications in optical fiber communication system and high speed optoelectronics are introduced .关键词：supercontinuum optical pulse;nonlinear effects;optical fiber communication?
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发布时间： - 摘要：This paper presents a number of techniques that have been developed to reduce clipping-induced nonlinear distortion in SCM lightwave systems, and especially introduces precoding technique. The optical transmitter drive circuits of AM-VSB/M-QAM subcarrier-multiplexed externally modulated system are designed on the basis of this precoding technique.关键词：dissymetrization scheme;equalization technology;preclipping method;precoding technique
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发布时间： - 摘要：The information explosion brought about limitless demand for bandwidth. The WDM system can not only meet such demand but also have advantages in networking. In this paper, we especially study the key technologies of WDM optical networking.关键词：dense wavelength division multiplexing;WDM optical networking;all-optical networking
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发布时间： - 摘要：To help the network operators in constructing their networks in a cost-effective way, Lucent Technologies presented its newly developed DWDM equipments, TrueWave fiber and AllWave fiber, gave its solution of optical multiservice network.关键词：DWDM;TrueWave fiber;AllWave fiber
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发布时间： - 摘要：The SDH transmission system will out of service when fibers fail on optical line. We connect the SDH system with the relative ports of DWDM system. The useful experiences are applicable to similar occasions.关键词：feasibility;superiority;matching;optical power;attenuator
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- 25
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发布时间： - 摘要：The realization project to extract 2 Mbit/s signal from STM-1 is discussed in this paper. The arithmetic of adaptive bit leak rate to reduce the pointer justification jitter is put forward. The FPGA, ASIC harder test results testify that the project introduced in this is paper is correct and the performances meet the ITU standard.关键词：SDH;extraction;desynchronizing;bit leak rateh
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发布时间： - 摘要：Progress in the fabrication of continuously chirped fiber gratings and step-chirped fiber gratings are reviewed, and the characteristics of the various methods in which chirped fiber gratings are fabricated are briefly analyzed.关键词：chirp;fiber grating;dispersion compensation
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- 307
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发布时间： - 摘要：Recently, polarized mode dispersion（PMD） has become an important limiting factor for the performance of long distance high data rate digital and analog systems. This paper introduces the principle of PMD and the considerations based on PMD for system deployment at first, and then presents a comparison among four different measure methods. The evident advantage of Corning’s single mode fiber at PMD over that of the other companies is also presented.关键词：single mode fiber;polarized mode dispersion（PMD）
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发布时间： - 摘要：With the advent of high bit-rate （STM-64, soon STM-256） and narrowly spaced Wavelength Division Multiplex （WDM） systems, new single mode fiber types are available that offer better characteristics as compared to traditional G.652 fiber:high bit-rate （easier chromatic dispersion compensation）, longer reaches before regeneration （lower chromatic dispersion）, better upgrade ability of system, lower total system cost,etc.关键词：PMD;nonlinear effects;effective area;fused spl?
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