激光发展史英文文献.docx
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激光发展史英文文献.docx
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激光发展史英文文献
China'slasertechnologydevelopmentRetrospectandProspect
"Laser"is"LASER"translation.LASERwasoriginallyLightamplificationbystimulatedemissionofradiationfromacombinationoftheprefixspecificterms,inourcountryhasbeentranslatedinto"Laise,""lasinglight,"and"opticalamplifierbystimulatedemission."1964,QianXuesenacademiciansproposalnamed"Laser",reflectsnotonlythe"stimulatedemission,"thescientificconnotation,andthatitisaverystrongsourceofnew,appropriate,vividandconcise,bytheChinesescientificcommunityconsensusandinuseeversince.
Fromthe1961Chinafirstlaserthathassuccessfullydevelopedthroughoutthecountry,laserresearch,teaching,productionanduseofunitsunderjointefforts,Chinahasformedacompleterange,theadvancedlevel,theapplicationoflasertechnologytoawiderangeoffields,andmadetheindustrializationofencouragingprogressforChina'sscienceandtechnology,nationaldefenseandnationaleconomyandmadepositivecontributionsintheinternationalarenahasalsogainaplace.
China'searlydevelopmentoflasertechnology
1957,inChangchunWangShouguan,suchasChina'sfirstprofessionalopticalInstitute-theChineseAcademyofSciences(Changchun)opticalprecisioninstrumentsMachineryResearchInstitute("-raymachine").Intheoldergenerationofexpertsundertheleadershipofanumberofyoungscienceandtechnologyworkerswillgrowrapidly,DengXimingisoneoftheoutstandingrepresentatives.Asearlyasin1958theUnitedStatesphysicistXiaoluo,Townesontheprincipleoflaserfamouspaperpublishedsoon,hewillactivelypromotethisnewtechnologyresearchcarriedoutinashorttimethecombinationoftheinnovativespiritoftheyoungandmiddle-agedresearchteamproposedsubstantialincreasebrightnesslightsource,colorunits,coherenceofideasandexperimentalprogrammes.1960Worldfirstlasercomeout.Summer1961,undertheauspicesofWangJiang,China'sfirstrubylaserdeveloped.Withinashortspaceofafewyears,lasertechnologydevelopedrapidly,andproduceanumberofadvancedachievements.Varioustypesofsolids,gases,chemicalsandsemiconductorlasershavebeensuccessfullydeveloped.Inthebasicresearchandkeytechnologies,aseriesofnewconcepts,newmethodsandnewtechnologies(suchasmutationandcavityQ-to-Q,travelingwaveamplification,Re-usesystem,freeelectronoscillationsradiation,etc.)havebeenputforwardandimplemented,andmanyofthemareunique.
Atthesametime,asahigh-brightness,high-directional,high-quality,andotheradvancedfeaturesofthenewlightsource,laserusedinvarioustechnicalfieldsquickly,demonstratingastrongvitalityandcompetitiveness.Communications,inSeptember1964bytelevisionpicturestransmittedlaserdemonstration,inNovember1964toachieve3to30kmcalls.Industries,inMay1965laserdrillingmachinesuccessfullyusedDrawingDieBlankingproduction,acquisitionsignificanteconomicbenefits.Medicine,June1965retinallaserweldingfortheanimalsandconductclinicaltrials.Nationaldefense,inDecember1965successfullydevelopedlaserrangefinderDiffuseReflectance(accuracyof10meters/10km),inApril1966developedremotecontrolpulselaserDopplervelocimeter.
Alongwiththetheorystudyofthelaserself-mixinginterferencebecomingmaturerhigherincreasingly,theapplicationinvibration,micro-displacementandvelocitymeasurebasedonthistechnologybecomebroader.Thetechnicrequiresreal-timeacquisitionandprocessingforthelaserinterferometersignal.Thedataacquisitionandprocessingsystemoftraditionalvibrometerisstructuralcomplex,highcostanddifficulttocarry.Withthehighrunningspeedandhigh-precisioncomputing,digitalsignalprocessor(DSP)issuitableforthelaserself-mixinginterferencesignalacquisitionandprocessing.Inthispaper,thetechnologyoflaserself-mixinginterferencemodulatedbytriangularwavecurrentisresearched.ItstudiestheoreticalmodelofthevibrationsystemandusesMatlabforalgorithmssimulationanderroranalysis,alsodiscusseshowtominishtheerror.AdataacquisitionandprocessingsystemwhichadoptsTMS320LF2407ADSPfromTIasacentralprocessorisdesigned.Thedesigningandrealizationplanofsystemforhardwareisproposedindetail,includingDSPminisystem,DSPandADCinterfacecircuit,signalconditioningcircuit,LCDdisplaymoduleandDSPinterfacecircuit,RS232communicationcircuitetc,technologyonhardwaredesigningisalsodiscusssedinthedissertation.Thedesigningandrealizingprocessofsystemforsoftwareisanalyzedasfollowed,whichconsistsofapplicationofCCS,planningofCMDdocument,dataacquisitionandprocessingmodule,LCDdisplaymoduleandserialcommunicationmodulebasedonMatlab.Practiceshowsthatthisdataac
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