最新刊期
      卷 ， 期 5 ， 1998
      • Wang Yanchuan\ \ Mao Qian\ \ Yu Shaohua
        Issue 5, (1998)
        摘要：This paper introduces and analyzes the VC designation which is defined in ITU T recommendation M.1400, and makes a further discussion about this designation applying to SDH network level circuit configuration.  
        关键词：\ SDH;\ VC;\ Circuit configuration   
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      • Gong Qin\ \ Cai Jianxin\ \ Sun Jinlun
        Issue 5, (1998)
        摘要：With the development of optical fiber transmission system towards high capacity and speed, Self Healing plays a more and more important role in the event of failure. First, a distributed dynamica routing self healing algorithm based on link in DCS meshed network is proposed, then simulation is made to test the proposed algorithm, at last, the advantage of this algorithm over others is presented.  
        关键词：DCS;\ self healing message;\ network flooding;\ spare capacity;\ dynamic routing   
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      • Wang Lin\ \ Yang Enze\ \ Zhang Yimo\ \ et al
        Issue 5, (1998)
        摘要：We demonstrate some methods to compensate exactly for chromatic dispersion in a transmission fiber and show how to use these methods to compress optical pulses.  
        关键词：dispersion compensation;\ dispersion equalizing fiber;\ F P interferometer   
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      • Hu Huang qiu
        Issue 5, (1998)
        摘要：This paper colligation analyses the transmission technology of the passive optical network and present that the transmission technology of time division multiplexing for the passive optical network is the main development direction of narrow band service and future broad band service .Simultaneity, this paper also provide adequate discussion to the fundamentdls and characteristics and the key technology of the passive optical network ,and simply introduces the narrow band passive optical network flexible access equipment ,which is researched in the our institute.  
        关键词：passive optical network;\ bit synchronization;\ bit timing   
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      • Xie Fan\ \ Xiang Dong\ \ Wang Qixian
        Issue 5, (1998)
        摘要：This article introduces the functions structure and design idea of an optical fiber monitoring system, OMS98, which is effective, flexible and reliable. And it has shown high application value in the optical fiber communication field of MOR.  
        关键词：optical fiber monitoring;\ optical cable line   
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      • Wang Shubin\ \ Ruan Hui\ \ Lian Haibin\ \ et al
        Issue 5, (1998)
        摘要：On the basis of trial basic type fiber secondary coating line of bias capstan controlling fiber excess length,at the same time to add equepments, extending its functions,we describes how to design multipurpose secondary coating line that is suited to a variety of product science experiments and suited for a little batch manufacture demand. Furthermore,according to product demand, it may be agilly buildup for a special purpose secondary coating line of a batch manufacture of multi products.  
        关键词：fiber secondary coating;\ bias capstan;\ fiber excess length   
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      • Issue 5, (1998)
        摘要：掺铒光纤放大器（简称ＥＤＦＡ）和波分复用（简称ＷＤＭ）技术在光通信系统中的应用，将光纤的信息载运容量提高了若干个数量级。由于光放大器的高输出功率和多个波长的同时传输，光纤的非线性效应和色散已经成为系统性能的主要限制因素。对于目前使用的常规单模光纤来说...  
          
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      • Zou Liujuan\ \ Zhou Zhimin\ \ Tang Liangjing
        Issue 5, (1998)
        摘要：This paper gives an overall and qualitative analysis of the dispersion characteristic of chirped Bragg fiber grating. Using the coupled mode equation we derive the reflectivity equation on Chirped Bragg grating and the formula to calculate the dispersion of Chirped Bragg fiber grating. Finally we introduce the concept in figure of merit of microware field to quantize the compensation capacity of the dispersion compensator.  
        关键词：chirped bragg fiber grating;\ reflectivity equation;\ coupled mode equation;\ figure of merit;\ compensation capacity   
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      • Xu Zhitao\ \ Wang Renfan\ \ Chen Haohan
        Issue 5, (1998)
        摘要：This paper repoted a top illuminated GaInAs/InP PIN photodiode has been produced in planar junction configaration（with Si InP substrate）, wich combines high reliability（no change in dark current over 1500h at 150℃）, with the wide bandwidth （15GHz） and high responsivity （0.94A/W at 1.3μm）.  
        关键词：Photodiode;\ planar PIN;\ optical communication;\ optical receiver   
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      • Yin Xinda\ \ Huang Xuanze\ \ Zhang Xueyong\ \ et al
        Issue 5, (1998)
        摘要：We introduced the structure and application of erbium doped fibre pre amplifier,and analyzed the key factors that affect the sensitivity of the receiver with an optical pre amplifier.We also introduced the procedure for optical pre amplifier design and experimental results.  
        关键词：erbium doped fiber pre amplifier;\ receiver;\ sensitivity   
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      • Ai Shiying
        Issue 5, (1998)
        摘要：Optical Time Division Multipexing （OTDM） Technology is the effective technology to transmit signal at super high speed, in this paper, the main aspects of OTDM technology are introduced, and their applications are also noted. Having described the using of OTDM technology on point to point telecommunication system and network system, suggest that the combination of OTDM and WDM is trend of future network.  
        关键词：OTDM;\ Optical Telecommunication system;\ Optical Resource   
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      • Zhao Yulan
        Issue 5, (1998)
        摘要：PIC/OEIC is the key device to realize longdistance, highcapacity optical communication network, optical subscriber network and optical switch. The development of international semiconductor material, technique and PIC/OEIC devices in recent two years are presented.  
        关键词：PIC;\ OEIC;\ selective growth technology;\ optical modulator   
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      • Tang Renjie
        Issue 5, (1998)
        摘要：Since the year 1990 till to the early of 21 century ,the telecommunication demand for bandwidth has been increasing exponentially. Transmission technology is moving toward higher bit rates per wavelength and to dense wavelength division multiplexing （DWDM）.The specifications to determine polarization mode dispersion （PMD） coefficient with statistical methods are under consideration. The demand on high count fiber cable is increasing thereby increasing the applications for ribbon cable. The systems with alternating positive and negative dispersion TrueWave fibers need no dispersion compensation and provide better performance , which is the best choice for long distance terrestrial networks. The nonlinear effects can be reduced by increasing the fiber effective area .But present large effective area fibers （LEAF） still have some problems with higher zero dispersion slope and bending sensitivity, it is not ideal for terrestrial application and it is best for submarine cables. The optimum LEAF are still under development.  
        关键词：PMD;\ ribbon cables;\ TrueWave fiber;\ nonlinear;\ LEAF   
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