简介：Thepiezoelectricfilmelectro-depositionforopticalfibersensorwithZnOcoatingisstudied.Thezincoxideplatingfilmismadeonthecoppersurfacedirectlybycathodicelectro-depositionintheZn(NO_3)_2singlesaltaqueoussolutionsystems.TheinfluencesofmainexperimentalconditionsonthepropertiesofZnOthinfilmintheelectro-depositionprocessesareanalyzedandastable,practicalandeconomictechniqueisobtained.

简介：AnovelInGaAs/InAlAscoupledquantumwellstructureisproposedforlargefield-inducedrefractiveindexchangewithlowabsorptionloss.Inthecaseoflowappliedelectricfieldof15kV/cmandlowabsorptionloss(±≤100cm-1),alargefield-inducedrefractiveindexchange(fortransverseelectric(TE)mode,△n=0.012;fortransversemagnetic(TM)mode,△n=0.0126)isobtainedinthestructureattheoperationwavelengthof1.55μm.Thevalueislargerbyoveroneorderofmagnitudethanthatinarectangularquantumwell.Theresultisveryattractiveforsemiconductoropticalswitchingdevices.

简介：采用Fabry-Perot(FP)的一个新奇紧缩的optoelectronic振荡器(OEO)反响电镀物品眼(EO)调节的人被建议并且试验性地示威了。反响的调节的人象模式选择元素一样被用作光存储元素，它能极大地减少系统复杂性并且使系统更便携式。而且，为FP反响的EO调节的人的光回声和电的传播反应理论上并且试验性地被学习。建议OEO在proof-of-concept实验，和噪音能分别地在1MHz偏移量频率在118和108dBc/Hz下面到达的相应单个边带的阶段在10和20GHz震荡。

简介：Pockel’seffectandopticalrectificationinducedbythebuilt-inelectricfieldinthespacechargeregionofasiliconsurfacelayeraredemonstratedina{001}-cuthigh-resistancesiliconcrystal.Thehalf-wavevoltageisabout203V,deducedbyPockel’seffect.TheratioX2zxxX2zzziscalculatedtobeabout0.942accordingtoopticalrectification.OurcomparisonwiththeKerrsignalshowsthatPockel’ssignalismuchstronger.Thisindicatesthattheseeffectsaresoconsiderablethattheyshouldbetakenintoaccountwhendesigningsilicon-basedphotonicdevices.

简介：Adiode-end-pumpedelectro-optic(EO)Q-switchedgreenlaseroperatingattherepetitionrateof20kHzisreported.AblockofLa_3Ga_5SiO_(14)(LGS)singlecrystalisusedasaQ-switchandthetypeⅠphase-matchingLiB_3O_5(LBO)isusedasthenonlinearcrystalinthesecondharmonicgeneration.The2.3-Waveragepowerof532-nmgreenlaserisobtainedattherepetitionrateof20kHzwiththepulsewidthasshortas10ns.Whentheoutputpowerisabout1.5W,themeasuredpowerfluctuationislessthan1.4%(root-mean-square,RMS)withthebeamqualityfactorofM~2<2inbothorthogonaldirections.

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简介：Wereportaline-narrowedelectro-opticperiodically-poled-lithium-niobate(PPLN)Q-switchedlaserwithintra-cavityopticalparametricoscillationusingagrazing-incidencegrating,producing8-ns,5-μJpulsesat10-kHzrepetitionratewhenpumpedwitha10-Wdiodelaserat808nm.Theoutputwavelengthiscenteredat1554.3nmwitha0.03-nmspectralwidth.Wavelengthtuningisachievedbyrotatingamirrorandchangingthecrystaltemperature.

简介：Adiode-end-pumpedelectro-optic(EO)Q-switchedNd:YVO4laseroperatingatrepetitionrateof10kpps(pulsespersecond)wasreported.AblockofLa3Ga5SiO14(LGS)singlecrystalwasusedasaQ-switchandthedriverwasametaloxidesemiconductorfieldeffecttransistor(MOS-FET)pulserofhighrepetitionrateandhighvoltage.Atcontinuouswave(CW)operation,theslopeefficiencyofthelaserwas46%,andmaximumoptical-to-opticalefficiencywas38.5%.Usinganoutputcouplerwithtransmissionof70%,a10-kppsQ-switchedpulsetrainwith0.4-mJmonopulseenergyand8.2-nspulsewidthwasachieved,theopticalconversionefficiencywasaround15%,andthebeamqualityM2factorwaslessthan1.2.