最新刊期
      卷 ， 期 3 ， 1999
      • SHU Huade,QI Qinian
        Issue 3, (1999)
        摘要：This paper introduced a thermal resistance model of semiconductor laser diode, and analyzed wavelength control technology of laser diode in dense WDM system. We realized a stable wavelength DWDM transmitter utilizing this model, and the transmitter has been used in JinanQindao 82.5 Gbit/s DWDM project.  
        关键词：dense WDM;temperature control;wavelength control;laser   
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      • DENG Living
        Issue 3, (1999)
        摘要：In this paper the origin and development condition of IP technology is introduced, and the influence of the developing of IP technology to telecommunication network is studied, such as telecommunication network terminal equipment, accessing , switching, transmission and the evolution of telecommunication network.\=  
        关键词：IP;\ IP phone;\ IP over ATM;\ IP over SDH/SONET;\ IP over WDM/optical   
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      • ZHANG Jing LI Guangcheng
        Issue 3, (1999)
        摘要：The Synchronous Inverse Multiplexing in IBAS is a technique that can concatenateseveral isolate VC11/VC12 to offer an high speed channel, so that it can achieve the features of "bandwidth assignment upon request". It is a more efficient and feasible access solution comparing with other similar products.  
        关键词：IBAS;synchronous inverse multiplexing;MPEG2;ATM   
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      • JIANG RongTIAN Liren
        Issue 3, (1999)
        摘要：The jitter induced by pointer adjustment is one of the main impairments in SDH network, how to reduce it is a key problems in SDH system design. This paper introduces a method of feed forward pointer spreading and therortical analysis is developed to predict peak jitter performance.  
        关键词：bit leaking;threshold modulation;running average   
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      • LIU Xueyuan,\ \ ZHANG Jie,\ \ JIAN Huijuan\ \ GU Wanyi
        Issue 3, (1999)
        摘要：Network management is the basis of effective and reliable operation of alloptical communication network, and supervision of optical network is the foundation of network management. In this paper, we analyze the supervision methods of network elements in alloptical network. We realize the supervision of light source of local and remote transmitters and the control information of optical switch of OXC node through a 1.31m optical supervision channel.\=  
        关键词：alloptical network;\ network management;\ HDLC protocol   
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      • LIU Weifu1,\ WU Zhijian2 \=
        Issue 3, (1999)
        摘要：AllOptical Networks （AON） now is a hot research topics of optical fiber communication. In this paper, we first make a brief analysis of the background of AON, then the basic concepts and advantages of AON based on WDM are discussed. After this, two classic trials are introduced, which show the stateofarts of AON from one side. Finally, we introduce the lastest developments achieved by ITUT in the studying of WDMAON.\=  
        关键词：WDM;\ alloptical networks;\ trials networks \=\=   
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      • LIANG Jigao,ZHANG Xiaopin,\ LI Qing,\ WANG Qinghai
        Issue 3, (1999)
        摘要：This paper compares the burst mode optical transmitters and receivers used in passive optical networks with the traditional continuous mode optical transmitters and receivers,analyses their characteristics,and gives the theoretical circuits for designign,which can also be used in the fiber computer networks.  
        关键词：passive optical networks（PON）;burst mode optical transmitters;burst mode optical receivers;\ sensitivity   
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      • MIN Qing\=
        Issue 3, (1999)
        摘要：AddDrop Multiplexer （ADM） is the basic unit for composing a Synchronous Digital Transport Network. A SONET/SDH network can be made up of such Network Equipments （NE） as ADM, Terminal Multiplexer （TM）, Synchronous Digital Cross Connection （SDXC） and Network Management System （NMS） with much flexibility. The optical Aggregate Unit is the most important part of ADM. This paper introduce the composition of ADM and the reference design of OAU board.\=  
        关键词：SDH;\ ADM;\ overhead process;\ pointer;\ mapping;\ cross connection   
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      • TANG Yan,\ SHI Chi,\ WANG Hongyuan
        Issue 3, (1999)
        摘要：In this paper, we propose a HFC based comprehensive servicing solution that is applied in the computer data transmission, wireline television broadcasting and telephone communication. This scheme effectively integrates the computer communication with the analog wireline TV and telecommunication services, and according to the present utilization of frequency band resource in the CATV network, realizes a rafional frequency band assignment for the HFC channels.\=  
        关键词：HFC;frequency band;"three networks, one platform   
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      • LI Tongning\ \ JIN Jinyan\ \ YANG Xinming\ \ WANG Cailing\=LIU Tao \ \ HUANG Tao\ \ WANG Renfan\ \ WU Yousheng\=
        Issue 3, (1999)
        摘要：This paper reports the fabrication of 1.55 m monolithic integration DFBLD/EA grown with MOCVD and the test results in WDM system. The fiber output power2.5 mW with If =75 mA, SMSR>35 dB and the extinction ratio of 14 dB is achieved at -2.5V bias voltage under the condition of DC. No bit error appears after a transmission through 240 km fiber with bite rate 2.5 Gbit/s in WDM system. The channel penalty is 1dB BER = 10-12.  
        关键词：integrated optics;\ MQWlaser;\ modulator;\ DWDM system   
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      • SHEN Danxun,GU Wanyi,\ XU Daxiong
        Issue 3, (1999)
        摘要：This paper analysis the threshold characteristic of TEDFD laser.We compute the mainmode and submode with threshold conditions and the stability of single mode by using vector arthmetic of transfer matrix method.This method is also suitable the mode analysis for the other DFB laser.  
        关键词：TEDFB laser;TMM;threshold   
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      • WU ShupingDONG Tianlin
        Issue 3, (1999)
        摘要：The special techniques and practical results of measurement and application of PI curves of LD for CDROM are presented in this paper.  
        关键词：LD for CDROM;PI curves;temperature characteristic   
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      • LEI Fei
        Issue 3, (1999)
        摘要：This paper introduces the measuring instrument of fiber’s curl characteristic while made by the method of sideview microscopy,and it analyze the effect of fiber’s curl characteristic on fiber’s fusing characteristic.  
        关键词：Fiber’s curl chatacteristic;splicing loss;fiber ribber   
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      • Issue 3, (1999)
        摘要：本文通过对ＯＴＤＲ在光缆线路测量中出现的常见现象的分析，说明了使用ＯＴＤＲ应注意的几点问题，并指出在新型光纤网络中对ＯＴＤＲ的特殊要求，从而提高了我们的工作效率和处理事件的能力。  
        关键词：光纤光缆;光时域反射仪   
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      • Issue 3, (1999)
        摘要：最新ＳＤＨ系统集成芯片一套两片ＭＸＨＯ１５５－２和ＭＸＬＯ２１Ｅ１－３近日由清华大学电子工程系博士生导师，首届中国青年科学家奖获得者曾列光教授领导的课题组研制成功。这套芯片可以构成完整的ＳＤＨＳＴＭ－１并发选收自愈环系统所需的分插复接器（ＡＤＭ），也...  
          
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      • Issue 3, (1999)
        摘要：美国纽约州康宁市，１９９９年１月２７日讯，美国康宁公司（ＮＹＳＥ：ＧＬＷ）的ＬＥＡＦＲ○（大有效面积光纤）在光纤／光电子器件项目中荣获１９９９年ＬａｓｅｒＦｏｃｕｓＷｏｒｌｄ（世界激光集锦）的商业技术成就（ＣＴＡ）奖。这项颁奖是在加州ＳａｎＪｏｓｅ市...  
          
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