【英文标准名称】:Opticalamplifiers-Testmethods-Part3:Noisefigureparameters
【原文标准名称】:光学放大器.试验方法.第3部分:噪声指数参量
【标准号】:IEC61290-3-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-08
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC86C
【标准类型】:()
【标准水平】:()
【中文主题词】:放大器;基本规范;电气工程;纤维光学;测量技术;噪声因数;噪音指数;噪声测量;乱真信号;光学纤维;光波导;规范;测试
【英文主题词】:Amplifiers;Basicspecification;Electricalengineering;Fibreoptics;Interference(wavephysics);Measuringtechniques;Noisefactors;Noisefigure;Noisemeasurements;Noise(spurioussignals);Opticalfibres;Opticalwaveguides;Optics;Specification;Testing
【摘要】:ThisInternationalStandardappliestoallcommerciallyavailableopticalamplifiers(OAs),includingOAsusingopticallypumpedfibres(OFAsbasedoneitherrare-earthdopedfibresorontheRamaneffect),semiconductoropticalamplifiers(SOAs)andplanarwaveguideopticalamplifiers(PWOAs).TheobjectofthisstandardistoprovidethegeneralbackgroundforOAnoisefigureparametersmeasurementsandtoindicatethoseIECstandardtestmethodsforaccurateandreliablemeasurementsofthefollowingOAparameters,asdefinedinIEC61291-1:a)noisefigure(NF);b)noisefactor(F);c)multiplepathinterference(MPI)figureofmerit;d)signal-spontaneousnoisefigure;e)(equivalent)spontaneous-spontaneousopticalbandwidth(Bsp_sp);f)forwardamplifiedspontaneousemission(ASE)powerlevel;g)reverseASEpowerlevel;h)ASEbandwidth.ThisstandardaddressesmeasurementofOAsthataretobeusedforamplifyingsinglechannels,thatissignalsfromasingletransmitter.TestingofOAsformultichanneluseinvolvesadditionalconsiderations,suchas:thenumber,wavelengthsandrelativepowerofthesignals,theabilitytomeasuresignalssimultaneouslyandtomeasuretheASEbetweenchannels.NOTEMethodsformeasurementofOAsformultichanneluseareincludedintheIEC61290-10series.
【中国标准分类号】:M33
【国际标准分类号】:33_180_30
【页数】:21P;A4
【正文语种】:英语


【英文标准名称】:PreformedPolychloropreneElastomericJointSealsforBridges
【原文标准名称】:桥用预制聚氯丁(橡胶)弹性接头封缝件
【标准号】:ASTMD3542-1992
【标准状态】:现行
【国别】:美国
【发布日期】:1992
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:路面(道路);建筑;承重面的表面修饰;施工材料;聚氯丁;公路建设;精整;桥;路面;材料;表面;道路建筑;弹性体
【英文主题词】:bridges;surfacefinishesforloadbearingplanes;constructionmaterials;elastomers;pavements(roads);polychloroprene;materials;finishes;construction;surfaces;pavement;roadconstruction
【摘要】:
【中国标准分类号】:H54
【国际标准分类号】:93_040;91_100_50
【页数】:4P;A4
【正文语种】:英语