外腔反饋對激光器振蕩特性的影響.pdf

1、南京師范大學(xué)碩士學(xué)位論文外腔反饋對激光器振蕩特性的影響姓名：邵新一申請學(xué)位級別：碩士專業(yè)：物理電子學(xué)指導(dǎo)教師：王鳴20100514AbstractAbstractLaserfeedbackinterferenceie1aserselfmixingeffect01“injeetedmodulationeffect，referstoaportionoflightemittedfromalasersourceisreflectedorscat

2、teredbyalleXtemalobjectandcoupledintothelasercavityThefeedbacklightwhichcarriesinformationoftheexternalobjectthenmixeswi也thelightinsidethecavityandmodulatestheoutputsignaloflaserpowerThesignalcharacteristicofthissystemis

3、similartothatoftheconventionaltwo—beaminterference，thusitiscalledlaserfeedbackinterferenceTheproblemoffeedbackinterferencestemsfromtheopticalfeedbackeffectPreviouslypeoplealwaystriedtoeliminatetheopticalfeedbackeffect，bu

4、tgraduallypeoplebegantomakeuseofitactivelytOmeasureallkindsofphysicalquantities，thusselfmixinginterferencetechnologywasbroughtfortllInthispaperwefocusvisualmodalandsimulationofdynamiccharacteristicinsemiconductorlaserswi

5、也externalopticalfeedbackTheopticalfeedbackselfmixingmodelisstudiedwhentheexternalcavityofasemiconductorlasersuffersaharrnomcvibrationAnewmethodtostudythedynamiccharacteristicinsemiconductorlaserswithextemalopticalfeedbac

6、kispresentedThesemiconductorlaserswithextemalopticalfeedbackwhichisatweaktomoderatefeedbackisanalyzedbasedonthevisualsimulationsoftwareTheresultsofsimulationshowthatforsmallopticalfeedback，thesystemisperiodic；withtheincr

7、easingoftheopticalfeedback，theoutputofthesystemgoesintochaosfromperiodicstateAndthechaoscontrolviahighfrequencymodulationisstudiedComparedwiththesimulationtechnologywhichisbasedonthehi曲levellanguage，weavoidcomplicatedpro