Kwiminyaka yakutshanje, abaphandi abavela kumazwe ahlukeneyo basebenzise iifotoni ezidityanisiweyo ukuze baqonde ngokulandelelana ukukhohlisa kwamaza okukhanya kwe-infrared kwaye bawasebenzise kuthungelwano olunesantya esiphezulu se-5G, i-chip sensors, kunye nezithuthi ezizimeleyo.Okwangoku, ngokuqhubeka kobunzulu bolu lwalathiso lophando, abaphandi baye baqalisa ukukhangela ngokunzulu amabhanti okukhanya okubonakalayo okufutshane kunye nokuphuhlisa izicelo ezibanzi, ezifana ne-chip-level LIDAR, AR / VR / MR (iphuculwe / ebonakalayo / hybrid) Inyani) Iiglasi, imiboniso yeholographic, iitshiphusi zokusetyenzwa kwequantum, ii-optogenetic probes ezifakwe kwingqondo, njl.
Udibaniso olukhulu lweemodyuli zesigaba se-optical ngundoqo we-optical subsystem ye-on-chip optical routing kunye ne-free-space-space wavefront shapeping.Le misebenzi mibini yokuqala ibalulekile ekuphunyezweni kwezicelo ezahlukeneyo.Nangona kunjalo, kwiimodyuli zesigaba se-optical kuluhlu lokukhanya olubonakalayo, kunzima kakhulu ukuhlangabezana neemfuno zokuhanjiswa okuphezulu kunye nokumodareyitha okuphezulu ngexesha elinye.Ukuhlangabezana nale mfuneko, neyona nto ifanelekileyo ye-silicon nitride kunye ne-lithium niobate imathiriyeli kufuneka inyuse umthamo kunye nokusetyenziswa kwamandla.
Ukusombulula le ngxaki, uMichal Lipson kunye noNanfang Yu weYunivesithi yaseColumbia baqulunqa i-silicon nitride thermo-optic phase modulator esekelwe kwi-adiabatic micro-ring resonator.Baye babonisa ukuba i-micro-ring resonator isebenza kwimeko eqinile yokudibanisa.Isixhobo sinokufezekisa ukumodareyitha kwesigaba kunye nelahleko encinci.Xa kuthelekiswa neemodyuli zesigaba se-waveguide, isixhobo sinomyalelo wokunciphisa ubukhulu bendawo kunye nokusetyenziswa kwamandla.Umxholo oyeleleneyo upapashwe kwiNature Photonics.
UMichal Lipson, ingcali ekhokelayo kwicandelo leefotonics ezihlanganisiweyo, esekwe kwi-silicon nitride, uthe: "Isitshixo kwisisombululo sethu esicetywayo kukusebenzisa i-resonator ebonakalayo kunye nokusebenza kwindawo ebizwa ngokuba yi-coupling state."
I-resonator ye-optical yisakhiwo esilinganisa kakhulu, esinokuguqula isalathisi esincinci se-refractive index ibe yinguqu yesigaba ngokusebenzisa imijikelezo emininzi yokukhanya.Ngokubanzi, inokwahlulwa ibe ziindawo ezintathu ezahlukeneyo zokusebenza: "phantsi kokudibanisa" kunye "phantsi kokudibanisa."Ukudibanisa okubalulekileyo" kunye "nokudibanisa okuqinileyo."Phakathi kwabo, "phantsi kokudibanisa" kunokubonelela kuphela ukumodareyitha kwesigaba esilinganiselweyo kwaye kuya kwazisa utshintsho olungadingekile lwe-amplitude, kwaye "ukudibanisa okubalulekileyo" kuya kubangela ukulahlekelwa okukhulu kwe-optical, ngaloo ndlela kuchaphazela ukusebenza kwangempela kweso sixhobo.
Ukufezekisa ukumodareyitha kwesigaba esipheleleyo se-2π kunye notshintsho oluncinci lwe-amplitude, iqela lophando liye layilawula i-microring kwindawo "yokudibanisa okuqinileyo".Amandla okudibanisa phakathi kwe-microring kunye "nebhasi" ubuncinane ngamaxesha alishumi ngaphezu kokulahlekelwa kwe-microring.Emva koluhlu lwezoyilo kunye nokuphucula, isakhiwo sokugqibela siboniswe kumzobo ongezantsi.Le yiringi ene-resonant enobubanzi obunqamlekileyo.Inxalenye ye-waveguide emxinwa iphucula amandla okudibanisa optical phakathi kwe "bhasi" kunye ne-micro-coil.Inxalenye ebanzi ye-waveguide Ukulahleka kokukhanya kwe-microring kuncitshiswe ngokunciphisa ukusasazeka kwe-optical ye-sidewall.
UHeqing Huang, umbhali wokuqala weli phepha, ukwathe: “Siyile imodyuli yesigaba sokukhanya esincinci, eyonga umbane, kunye nelahleko ephantsi kakhulu enobubanzi obuyi-5 μm kuphela kunye nesigaba se-π-modulation sosetyenziso lwamandla kuphela. 0.8 mW.Ukwahluka kwe-amplitude okwazisiweyo kungaphantsi kwe-10%.Yintoni enqabileyo kukuba le modyuli iyasebenza ngokulinganayo kwezona bhanti zinombala oluhlaza kunye noluhlaza kwimbonakalo ebonakalayo. "
U-Nanfang Yu uphinde wachaza ukuba nangona bekude nokufikelela kwinqanaba lokuhlanganiswa kweemveliso ze-elektroniki, umsebenzi wabo uye wanciphisa kakhulu umsantsa phakathi kokutshintsha kweefoto kunye nokutshintsha kwe-elektroniki."Ukuba itekhnoloji yemodyuli yangaphambili ivumele kuphela ukudityaniswa kweemodyuli zesigaba samaza esili-100 ezinikwe isiseko setshiphu ethile kunye nohlahlo lwabiwo-mali lwamandla, ngoku sinokudibanisa i-10,000 yesigaba sokutshintsha kwi-chip enye ukuze sifezekise uMsebenzi onzima ngakumbi."
Ngamafutshane, le ndlela yoyilo inokusetyenziswa kwiimodyuli ze-electro-optic ukunciphisa indawo ehlala kuyo kunye nokusetyenziswa kombane.Inokusetyenziswa kwakhona kolunye uluhlu lwe-spectral kunye nolunye uyilo lwe-resonator eyahlukeneyo.Okwangoku, iqela lophando liyasebenzisana ukubonisa i-LIDAR ebonakalayo ebonakalayo eyenziwe ngamanqanaba e-shifter arrays ngokusekelwe kwii-microrings ezinjalo.Kwixesha elizayo, inokuphinda isetyenziswe kwizicelo ezininzi ezinje ngokuphuculwa kokungahambelani kwamehlo, iilaser ezintsha, kunye ne-quantum optics entsha.
Umthombo wenqaku: https://mp.weixin.qq.com/s/O6iHstkMBPQKDOV4CoukXA
I-Beijing Rofea Optoelectronics Co., Ltd. ebekwe eTshayina “kwiSilicon Valley” – iBeijing Zhongguancun, lishishini lobugcisa obuphezulu obuzinikele ekukhonzeni amaziko ophando asekhaya nawangaphandle, amaziko ophando, iiyunivesithi kunye nabasebenzi bophando lwezenzululwazi kushishino.Inkampani yethu ibandakanyeka ikakhulu kuphando oluzimeleyo kunye nophuhliso, uyilo, ukuvelisa, ukuthengisa iimveliso ze-optoelectronic, kwaye ibonelela ngezisombululo ezintsha kunye neenkonzo zobuchwephesha, ezenzelwe umntu abaphandi besayensi kunye neenjineli zeshishini.Emva kweminyaka yokwenziwa kwezinto ezizimeleyo, yenze uluhlu olutyebileyo nolugqibeleleyo lweemveliso zombane, ezisetyenziswa kakhulu kumasipala, emkhosini, kwezothutho, kumandla ombane, ezemali, ezemfundo, ezonyango kunye namanye amashishini.
Sijonge phambili kwintsebenziswano nawe!
Ixesha lokuposa: Mar-29-2023