Kutshanje kufundwe kwiYunivesithi yeSayensi kunye neTekhnoloji yaseTshayina, iyunivesiti yeGuo Guangcan isifundiswa seqela uNjingalwazi uDong Chunhua kunye nomdibanisi uZou Changling ucebise indlela yokulawula ukusasazeka kwemicro-cavity, ukuphumeza ulawulo lokwenyani oluzimeleyo kwiziko le-optical frequency comb. i-frequency kunye ne-repetition frequency, kwaye isetyenziswe kumlinganiselo ochanekileyo we-optical wavelength, ukuchaneka komlinganiselo we-wavelength kwandiswe kwi-kilohertz (kHz).Iziphumo zapapashwa kuNxibelelwano lweNdalo.
Ii-microcombs ze-Soliton ezisekwe kwii-microcavities zokukhanya ziye zatsala umdla omkhulu wophando kwimimandla ye-spectroscopy kunye neewotshi zamehlo.Nangona kunjalo, ngenxa yempembelelo yokusingqongileyo kunye nengxolo ye-laser kunye nemiphumo eyongezelelweyo engabonakaliyo kwi-microcavity, ukuzinza kwe-soliton microcomb kulinganiselwe kakhulu, okuba ngumqobo omkhulu ekusebenziseni okusebenzayo kwinqanaba eliphantsi lokukhanya.Kumsebenzi wangaphambili, izazinzulu zizinzile kwaye zilawula i-optical frequency comb ngokulawula isalathisi se-refractive sezinto eziphathekayo okanye i-geometry ye-microcavity ukufezekisa impendulo yexesha langempela, elibangele utshintsho olusondeleyo olufanayo kuzo zonke iindlela ze-resonance kwi-microcavity ngexesha elifanayo. ixesha, ukuswela ukukwazi ukulawula ngokuzimeleyo ukuphindaphinda kunye nokuphindaphinda kwekama.Oku kunqanda kakhulu ukusetyenziswa kwekama eliphantsi lokukhanya kwimiboniso ebonakalayo ye-spectroscopy echanekileyo, iifotoni ze-microwave, ukuvela kwe-optical, njl.
Ukusombulula le ngxaki, iqela lophando licebise indlela entsha yomzimba yokuqonda ukulawulwa kwexesha lokwenyani elizimeleyo le-frequency center kunye nokuphindaphinda okuphindaphindiweyo kwe-optical frequency comb.Ngokuzisa iindlela ezimbini ezahlukeneyo zokulawula ukusasazeka kwe-micro-cavity, iqela linokulawula ngokuzimeleyo ukusasazwa kwemiyalelo eyahlukeneyo ye-micro-cavity, ukuze kufezekiswe ulawulo olupheleleyo lwee-frequencies ezahlukeneyo zamazinyo e-optical frequency comb.Le ndlela yokulawula ukusasazwa kwayo yonke indawo ukuya kumaqonga ahlukeneyo efotonic adibeneyo afana ne-silicon nitride kunye ne-lithium niobate, eziye zafundwa ngokubanzi.
Iqela lophando lisebenzise i-laser yokupompa kunye ne-laser encedisayo ukulawula ngokuzimeleyo iindlela zendawo yemiyalelo eyahlukeneyo ye-microcavity ukuqonda ukuzinza okuguquguqukayo kwe-frequency mode yokupompa kunye nokulawulwa okuzimeleyo kwe-frequency comb repetition frequency.Ngokusekelwe kwi-optical comb, iqela lophando libonise ngokukhawuleza, ukulawulwa okucwangcisiweyo kwee-frequencies ze-comb engafanelekanga kwaye isetyenziswe kumlinganiselo ochanekileyo wobude be-wave wave, ebonisa i-wavemeter kunye nokuchaneka komlinganiselo womyalelo we-kilohertz kunye nokukwazi ukulinganisa ubude bamaza amaninzi ngaxeshanye.Xa kuthelekiswa neziphumo zophando lwangaphambili, ukuchaneka kokulinganisa okuphunyezwe liqela lophando kuye kwafikelela kwimiyalelo emithathu yokuphucula ubungakanani.
I-microcombs ye-soliton ehlengahlengiswayo ebonakaliswe kwesi siphumo sophando ibeka isiseko sokufezekiswa kwexabiso eliphantsi, imigangatho ye-chip edibeneyo ye-optical frequency, eya kusetyenziswa kumlinganiselo ochanekileyo, i-clock optical, i-spectroscopy kunye nonxibelelwano.
Ixesha lokuposa: Sep-26-2023