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BS EN 61290-11-1-2003 光学放大器.基本规范.偏振模式色散.琼斯矩阵特征分析法(JME)

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【英文标准名称】:Opticalfibreamplifiers-Basicspecification-Polarizationmodedispersion-Jonesmatrixeigenanalysismethod(JME)
【原文标准名称】:光学放大器.基本规范.偏振模式色散.琼斯矩阵特征分析法(JME)
【标准号】:BSEN61290-11-1-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-05-23
【实施或试行日期】:2003-05-23
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Amplifiers;Analysis;Basicspecification;Dispersion;Electricalengineering;Fibreoptics;Fibres;Matrices;Multilingual;Opticaldevices;Opticalwaveguides;Optics;Parameters;Photoelasticmethods;Polarizationmodedispersion;Polarization(wavephysics);Semiconductors;Specification
【摘要】:ThispartofIEC61290appliestoallcommerciallyavailableopticalamplifiers(OAs)includingopticalfibreamplifiers(OFAs)usingactivefibresandsemiconductoropticalamplifiers(SOAs)usingsemiconductorgainmedia.Polarization-modedispersion(PMD)causesanopticalpulsetospreadinthetimedomain.Thisdispersioncouldimpairtheperformanceofatelecommunicationssystem.Theeffectcanberelatedtodifferentialgroupvelocityandcorrespondingarrivaltimesofdifferentpolarizationcomponentsofthesignal.Foranarrowbandsource,theeffectcanberelatedtoadifferentialgroupdelay(DGD)betweenpairsoforthogonallypolarizedprincipalstatesofpolarization(PSP).ThistestmethoddescribesaprocedureformeasuringthePMDofOAs.ThemeasurementresultisobtainedfromthemeasurementofthenormalizedStokesparametersattwocloselyspacedwavelengths.Thetestmethoddescribedhereinrequiresapolarizedsignalattheinputofthepolarimeterwithadegreeofpolarization(DOP)ofatleast25%.Althoughthetestsourceishighlypolarized,theDOPattheoutputoftheOAisreducedbyamplifiedspontaneousemission(ASE).AnnexBanalysestheimpactofASEontheDOP.Inordertoassureanaccuratemeasurement,theDOPismeasuredaspartofthemeasurementprocedure.Themethoddescribedhereinhasbeenshowntobeimmunetopolarization-dependentgain(PDG)andpolarizationdependentloss(PDL)uptoapproximately1dB.AlthoughtheJonesmatrixeigenanalysis(JME)testmethodisinprinciplealsoapplicabletounpumped(thatis,unpowered)OAs,theJMEtechniqueinthisstandardappliestopumped(thatis,powered)OAsonly.
【中国标准分类号】:N33
【国际标准分类号】:33_180_30
【页数】:16P.;A4
【正文语种】:英语


【英文标准名称】:SpecificationforHeat-ResistingChromiumandChromium-NickelStainlessSteelPlate,Sheet,andStripforPressureVesselsASTMA240-97a
【原文标准名称】:压力容器用耐热铬和铬-镍不锈钢板、薄材和带材.ASTMA240-97a
【标准号】:ASMESECIIASA-240-2002
【标准状态】:现行
【国别】:美国
【发布日期】:2002-07-01
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:BoilerandPressureVessel,SpecificationforHeat-ResistingChromiumandChromium-NickelStainlessSteelPlate,Sheet,andStripforPressureVesselsASTMA240-97a
【中国标准分类号】:H46
【国际标准分类号】:
【页数】:
【正文语种】:英语


【英文标准名称】:Agriculturalmachinery-Trailerswithtippingbody-Safety;GermanversionEN1853:1999+A1:2009
【原文标准名称】:农业机械.带翻斗装置的悬挂车.安全性.德文版本EN1853-1999+A1-2009
【标准号】:DINEN1853-2010
【标准状态】:现行
【国别】:德国
【发布日期】:2010-02
【实施或试行日期】:2010-02-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:事故预防;农用设备;农具;农业机械;农业安全;壳体;定义;设计;倾斜场;给食器;步行台阶;林业;林业设备;作标记;机械工程;操作说明书;保护设备;保护措施;安全性;安全距离;安全工程;机械安全;安全要求;规范(验收);稳定性;测试;自卸货车;倾卸车辆;受牵引车辆;挂车
【英文主题词】:Accidentprevention;Agriculturalequipment;Agriculturalimplements;Agriculturalmachines;Agriculturalsafety;Bodies;Definitions;Design;Dumpingground;Feeder;Footsteps;Forestry;Forestryequipment;Marking;Mechanicalengineering;Operatinginstructions;Protectiondevices;Protectivemeasures;Safety;Safetydistances;Safetyengineering;Safetyofmachinery;Safetyrequirements;Specification(approval);Stability;Testing;Tiplorries;Tippingvehicles;Towedroadvehicles;Trailers
【摘要】:Thedocumentspecifiessafetyrequirementsandtheirverificationforthedesignandconstructionofagriculturaltrailerswithatippingbody,balancedandsemimounted,wherethetermagriculturaltrailerreferstoavehicleusedinagricultureonlyfortransportandwhich,throughdesign,isadaptedandintendedfortowingbyatractororaself-propelledagriculturalmachine.
【中国标准分类号】:B91
【国际标准分类号】:65_060_10
【页数】:22P.;A4
【正文语种】:英语