1.3μm通讯波段非经典光场的实验制备

tionschemeofthesqueezedstatesat1.3grnwavelength.Thesqueezedstatesoflightat1.munication.Iamgoingtopresenttheexperimentalgenerationschemesoftwokindsofnon—classicalopticalfieldsat1.31amwavelengthfromanopticalparametricoscillator(OPO).ThepumpsourceoftheOPOisanextra—cavityfrequency—doublerwith0.671gmoutputlaserwhichispumpedbyahome-madeall—solid—statesinglefrequencyNd:YV04laserat1.3岬万方数据um通讯波段非经典光场的实验制备wavelength.Theintensity—differencesqueezedstatesof3.9dBbelowthecorrespondingshotnoiselevel(SNL)areobtainedwhentheOPOoperatingabovetheoscillationthreshold,andquadratureamplitudesqueezedstatesof2.5dBbelowthecorrespondingSNLareobtainedwhentheOPOoperatingbelowthethreshold.Keywords:municationwavelength;opticalparametricoscillator;intensitydifferencesqueezedstates;quadratureamplitudesqueezedstatesIV万方数据