资源描述：
《专业英语翻译 (13)》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、optic-fibercommunication;fiber-opticcommunicationsopticalfibercommunicationsFromtheopticalcommunicationtalentshowingitself,hasbecomeoneofthemainpillarsofmoderncommunicationinthemoderntelecommunicationsnetwork,playadecisiveroleinthe.Opticalfibercommunicationasanewte
2、chnology,itsrapiddevelopmentinrecentyears,applicationsbroadrangeofcommunicationsinhistory,butalsotheimportantsymbolofrevolutionofworldnewtechnologyandthefutureinformationsocietyinformationmaintransfertool.Opticalfiberforopticalfiberabbreviation.Opticalfibercommunic
3、ationistolightasthecarrierofinformation,withtheopticalfiberastransmissionmediumisameansofcommunication.Inprinciple,constitutethebasicelementsofopticalfibercommunicationopticalfiber,alightsourceandalightdetector.Opticalfiberinadditiontothemanufacturingprocess,materi
4、alcompositionandopticalpropertiesforclassification,intheapplicationoftheopticalfiber,usedtouseforclassification,canbedividedintocommunicationandopticalfibersensorwithopticalfiber.Transmissionmediumopticalfiberisdividedintogeneralandspecialtwo,andfunctionaldevicesfo
5、ropticalfiberreferstotheamplification,shaping,frequencydivider,frequency,modulationandopticaloscillationfeaturessuchasopticalfiber,andoftenafunctionofthedeviceappearedintheformof.Thecharacteristicsofopticalfibercommunication(1)thecommunicationscapacity,transmission
6、distance;afiberpotentialbandwidthofupto20THz.Thebandwidth,justonesecond,thenhumanatalltimesandinallcountriesalltextdata.The400Gbit/ssystemhasbeenputintocommercialuse.Theopticallossisextremelylow,inlightwithawavelengthof1.55mnearby,quartzfiberlosslowerthan0.2dB/km,t
7、heratioofanycurrenttransmissionmediumlossislow.Therefore,transmissiondistancecanreachtens,evenhundredsofkilometers.(2)smallsignalinterference,goodsecrecyperformance;(3)resistanttoelectromagneticinterference,thetransmissionqualityisgood,theelectriccommunicationcanno
8、tsolveallkindsofelectromagneticinterference,opticalfibercommunicationisnotonlyaffectedbyallkindsofelectromagneticinterference.(4)fiberofsmallsize
