摘要
Anall-fiberacousto-opticmodulator(AOM),whichfeaturesacompactstructureandalow-drivingvoltage,isexperimentallydemonstratedfortheactivemode-lockingofafiberlaser.TheproposedAOMisbasedontheshortlengthofthecladding-etchedfiber,theendsofwhicharefixedonaslideglass.Ontopofthecladding-etchedfiber,apiezoelectrictransducerwasoverlaid.Achemicalwet-etchingtechnique,whichisbasedonamixedsolutionofNH4Fand(NH4)2SO4,isusedtoreducethefiberdiameterdownto~25μm,andthelengthoftheetchedsectionisonly0.5cm.Thefabricateddeviceexhibitedamodulationdepthof73.10%atanacousticfrequencyof918.9kHzandapeak-to-peakelectricalvoltageof10V,whilealaserbeamwascoupledat1560nm.ByusingthepreparedAOMwithinanerbium-doped-fiberringcavity,themode-lockedpulseswithatemporalwidthof2.66pswerereadilyobtainedatarepetitionrateof1.838MHz.
出版日期
2017年05月15日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)