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简介:IwasdrivingmydadsoldCaddieontheinterstateinFlorida,whenIcameacrossthesignforthe“WorldsLargestFleaMarket.”Atonebooth,therewasasign“8-TrackTapesboughtandSoldHere!”Then,ithitme,somethinghadtobedoneaboutthatancientcollectionofDads8-tracksinthetrunkofthecar.Talkingtothedealer,whowasaretiredcop,hesaidhedbegladtotakethemoffmyhands,andpaymeafewbuckstoboot!Thecopcameuptome,tookmylicense,andexamineditandthecar.Finallyhec...
简介:Wepresentanovelandsimplemethodtoobtainanultrawidefreespectralrange(FSR)siliconringresonatortogetherwithatuningrangecoveringtheentirespectrumfrom1500to1600nm.AringresonatorwithalargeFSRtogetherwithahighQfactor,hightuningefficiency,andlowfabricationcostandcomplexityisdesiredformanyapplications.Inthispaper,weintroduceanovelwaytomakesucharingresonator,whichtakesadvantageofthewell-knownresonance-splittingphenomenon.ItisasingleringresonatorwithanFSRofmorethan150nmaround1550nmandwhichhasaneasythermo-optictunabilitythatcanproduceatuningrangearound90nmorevenmore.Moreover,thedeviceissimpletoimplementandcanbefabricatedinstandardcomplementarymetal-oxidesemiconductortechnologywithoutrequiringanykindofcomplicatedprocessingorextramaterials.Thepotentialapplicationsincludesinglemodelasercavities,wavelengthdivisionmultiplexingfilters,(de)multiplexers,opticalsensors,andintegratedreflectors.