最新刊期
      卷 ， 期 1 ， 1996
      • Issue 1, Pages: 18(1996) DOI: 10.13756/j.gtxyj.1996.01.007
        摘要：<正> 京汉广光缆（埋式）通信一级干线工程,是国家"八五"期间的重点建设项目,全程长2886 km,途经五省一市,敷设36芯光缆,安装12个140 Mbit/s 系统（采用 1B1H 码型,每个系统3120路电话）,总投资6.1亿元。该工程1994年11月起开始设备的安装,1995年6月完成全程设备的初验,7月中旬开始试运行至今,1996年1月24日完成竣工验收。  
          
        2
        |
        19
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503677 false
        发布时间：
      • Issue 1, Pages: 37(1996) DOI: 10.13756/j.gtxyj.1996.01.017
        摘要：<正> 1996年2月14～16日,武汉邮电科学研究院光纤光缆部经过国外认证机构的严格审核,顺利地通过了 ISO9002国际标准认证。在光纤光缆制造和应用技术研究方面,武汉邮电科学研究院已有二十余年的历史,产品在国内一直具有良好的市场信誉。获取质量体系认证资格,标志着光纤光缆产品的质量管理工作  
          
        2
        |
        9
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503680 false
        发布时间：
      • Issue 1, Pages: 3(1996)
        摘要：<正> 1996年1月22～26日,受国家计委委托,邮电部组织召开了对武汉邮科院承建的国家光纤通信技术工程研究中心（以下简称工程中心）的竣工验收大会。验收委员会由来自清华大学、北京邮电大学、华中理工大学、中科院上海冶金所、邮电部眉山通信设备厂、湖北和福建等省邮电管理局的通信专家、教授组成。出席会议  
          
        2
        |
        13
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503656 false
        发布时间：
      • Issue 1, Pages: 5-6(1996) DOI: 10.13756/j.gtxyj.1996.01.004
        摘要：<正> 各位专家、同志们:国家光纤通信技术工程研究中心经过三年多的建设和试运行,即将通过国家验收。请允许我代表邮电部党组,向会议表示热烈的祝贺,向参加国家光纤通信技术工程研究中心建设的全体职工同志表示亲切的慰问.向长期以来关心、支持我们的国家计委、湖北省政府、武汉市政府表示衷心的感谢。  
          
        2
        |
        33
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503645 false
        发布时间：
      • Wu Sanming Mao Qian
        Issue 1, Pages: 7-13(1996) DOI: 10.13756/j.gtxyj.1996.01.005
        摘要：This article introduces the characteristices of network synchronization on SDH optical digital transport network.Comparing to PDH system,the necessity of SDH network synchronization is discussed.The paper also analyses the reliability of SDH network synchronization and gives a messaging technique of synchronization status which is subject to improve reliability of SDH network synchronization.  
        关键词：network synchronization;pointer justification;synchronization status message   
        2
        |
        44
        |
        1
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503699 false
        发布时间：
      • Yu Jianjun Zhang Xiaoguang Yang Bojun
        Issue 1, Pages: 14-18(1996) DOI: 10.13756/j.gtxyj.1996.01.006
        摘要：The high frequency doubling efficiency of crystals is Very important for the second harmonic detection of optical solitons.The optimum design of those crystals is discussed.Some concrete parameters and soliton pulse shapes measured through experiments are also given.  
        关键词：second harmonic;crystal;optical axle   
        2
        |
        42
        |
        5
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503658 false
        发布时间：
      • Wang He
        Issue 1, Pages: 19-24(1996) DOI: 10.13756/j.gtxyj.1996.01.008
        摘要：Waiting time jitter,the low frequency stuffing jitter,can be caused by pulse stuffing synchronization of PDH multiplexing system and pointer adjustment of SDH system.Large amount of waiting time jitter may have harmful effects on a transmission network,needs to be reduced.Waiting time jitter characteristics are analyzed in this paper.  
        关键词：Waiting time jitter;pulse stuffing;pointer adjustment   
        2
        |
        14
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503649 false
        发布时间：
      • Hu Guohua
        Issue 1, Pages: 25-29(1996) DOI: 10.13756/j.gtxyj.1996.01.009
        摘要：The nature of wavelength shift of laser and its effect on high bit rate direct-m6dulation lightwave transmission system are analysed in the paper.A ana- lytical method is presented to caculate the performance of lightwave transmission system with combined effect of chirping and optical preamplifier.  
        关键词：wavelength shift;optical amplifier;noise;error rate   
        2
        |
        29
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503683 false
        发布时间：
      • Chen Liangsheng Zhu Dong
        Issue 1, Pages: 30-32(1996) DOI: 10.13756/j.gtxyj.1996.01.010
        摘要：In this paper,an ASIC chip WGOE34 is presented,which has been used in 34 Mbit/s optical digital multiplexing equipments based on 1B1H line en- coding mode.Its main features and design process of the ASIC are described.  
        关键词：ASIC;optical fiber transmission equipment;chip   
        2
        |
        16
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503691 false
        发布时间：
      • Zhang Yanshuang Wang Wei
        Issue 1, Pages: 33-37(1996) DOI: 10.13756/j.gtxyj.1996.01.001
        摘要：This paper reports the high temperature and cycling temperature,ex- periments of EDFA-Ⅲ 95002 and presents data and charts.With alteration of out- put power and gain less than 0.5dB,the pumping was able to work stably and properly.These experiments prove initially that EDFA-Ⅲ can work stably and reli- ably under the environment condition from 0℃ to 50℃ with the advanced characteristics of auto tracing,feedback pump current and real-time supervision. EDFA-Ⅲ is hoped to be used in practical optical communication systems since its technical specifications have been achieved to the international commercial level.  
        关键词：Er-doped fiber amplifier;pump;small signal gain   
        3
        |
        47
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503747 false
        发布时间：
      • Wang Qinglin Wu Xiaoshun
        Issue 1, Pages: 38-40(1996) DOI: 10.13756/j.gtxyj.1996.01.002
        摘要：The paper discusses a novel method used to fabricate the all-fiber wavelength independent coupler.The speciafications of devices are also given.It is shown that devices can be well applied in communication engineerings.  
        关键词：wavelength independent coupler（WIC）;fused biconical taper（FBT）;fiber   
        2
        |
        58
        |
        2
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503721 false
        发布时间：
      • Wang Suqin Li Mingjuan
        Issue 1, Pages: 41-43(1996) DOI: 10.13756/j.gtxyj.1996.01.003
        摘要：The paper gives an idea that one of the main factors which affects the reliability of the InGaAsP/InP double-heterostructure laser diodes is the thermal resistance.The selection of the chip solder is analyzed to be the key to actual life time of devices.The experimental results show that AuSn alloy is the ideal solder for high reliability laser diodes.  
        关键词：double heterostructure laser diode;reliability;thermal resistance;solder   
        2
        |
        40
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503668 false
        发布时间：
      • Shen Bichuan Wang Wei Jian Shuisheng
        Issue 1, Pages: 44-47(1996) DOI: 10.13756/j.gtxyj.1996.01.011
        摘要：The modified finite-difference beam propagation method employing ab- sorbing condition is developed to calculate the optical waveguides with large discon- tinuities along the direction of the propagation.The accuracy of this method is in- vestigated through a study of a directional coupler.Both the coupling length and the field distribution are in good agreement with the results in the literatures.  
        关键词：modified FDM-BPM;coupling length;field distribution   
        2
        |
        15
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503767 false
        发布时间：
      • Zou Linsen
        Issue 1, Pages: 48-50(1996) DOI: 10.13756/j.gtxyj.1996.01.012
        摘要：The paper introduces a new dispersion-shifted fiber and its background to be recommended.  
        关键词：DSF;nonlinear effect;attenuation   
        2
        |
        59
        |
        1
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503740 false
        发布时间：
      • Fu Haijie Huang Xiuqin
        Issue 1, Pages: 51-54(1996) DOI: 10.13756/j.gtxyj.1996.01.013
        摘要：The Loop of optical fibre is the sensing heart of an optical fibre gyro- scope,it is very important for the study and manufacturing of optical fibre gyro- scope that how to coil a optical fibre loop with a excellent quality.In this article,we will explain the coiling of optical fibre loop from theory and practice.The theory is consistent with the practice,the method is simple and easy to do.  
        关键词：optical fibre loop;polarization;extinction ratio   
        2
        |
        198
        |
        9
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503759 false
        发布时间：
      • Zhu Yinian
        Issue 1, Pages: 55-57(1996) DOI: 10.13756/j.gtxyj.1996.01.014
        摘要：The paper describes that the addition of nanosized particles of fumed silica to the polymer coating of fused silica optical fiber is shown to improve long- term mechanical properties of the fiber.Experiment shows that the presence of the additive dramatically reduces the rate of development of surface roughness and that the effect of the additive is to suppress surface dissolution processes.By this method,it delays the onset of the fatigue transition and reduces the strength degra- dation due to zero stress aging.  
        关键词：coating additives;fatigue and aging of optical fiber;reliability   
        2
        |
        69
        |
        2
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503714 false
        发布时间：
      • Cong Rigang
        Issue 1, Pages: 58-60(1996) DOI: 10.13756/j.gtxyj.1996.01.015
        摘要：In this paper the structure of the WDM high speed fiber network and the control protocol are described.At last an example is introduced.  
        关键词：WDM;medium access protocol;SCM   
        2
        |
        22
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503707 false
        发布时间：
      • Cai Zhifang
        Issue 1, Pages: 61-64(1996) DOI: 10.13756/j.gtxyj.1996.01.016
        摘要：In this paper,a new insulation & non-magnetic strength fiber Kevlar■yarn is introduced.Kevlar■yarn is widely used in military,airspace and in- dustrial etc.due to its high performance.  
        关键词：Kevlar■yarn;optical fiber;performance   
        2
        |
        29
        |
        0
        <HTML>
        <Meta-XML>
        <引用本文> <批量引用> 27503733 false
        发布时间：
      0