Eminyakeni yamuva nje, abacwaningi abavela emazweni ahlukahlukene basebenzise ama-photonics ahlanganisiwe ukuze babone ngokulandelana ukukhohliswa kwamaza okukhanya kwe-infrared futhi bawasebenzise kumanethiwekhi e-5G anesivinini esikhulu, izinzwa ze-chip, nezimoto ezizimele.Njengamanje, ngokujula okuqhubekayo kwalesi siqondiso socwaningo, abacwaningi sebeqalile ukuthola ngokujulile amabhande okukhanya abonakalayo amafushane futhi bathuthukise izinhlelo zokusebenza ezibanzi, ezifana ne-chip-level LIDAR, AR/VR/MR (ethuthukisiwe/i-virtual/ hybrid) Reality) Izingilazi, izibonisi ze-holographic, ama-quantum processing chips, ama-optogenetic probe afakwe ebuchosheni, njll.
Ukuhlanganiswa kwesilinganiso esikhulu samamojula wesigaba sokubona kuwumgogodla wesistimu engaphansi yokubona yomzila we-on-chip optical kanye nokubunjwa kwe-wavefront yesikhala esikhululekile.Le misebenzi emibili eyinhloko ibalulekile ekugcwalisekeni kwezinhlelo zokusebenza ezihlukahlukene.Kodwa-ke, kumamojula wesigaba sokubona ebangeni lokukhanya elibonakalayo, kuyinselele ikakhulukazi ukuhlangabezana nezidingo zokudluliswa okuphezulu nokushintshashintsha okuphezulu ngesikhathi esisodwa.Ukuze kuhlangatshezwane nalesi sidingo, ngisho nezinto ezifanele kakhulu ze-silicon nitride kanye ne-lithium niobate zidinga ukwandisa umthamo nokusetshenziswa kwamandla.
Ukuze kuxazululwe le nkinga, u-Michal Lipson kanye no-Nanfang Yu base-Columbia University baklame i-silicon nitride thermo-optic phase modulator esekelwe ku-adiabatic micro-ring resonator.Bafakazele ukuthi i-micro-ring resonator isebenza esimweni esiqinile sokuhlanganisa.Idivayisi ingafinyelela ukushintshwa kwesigaba ngokulahlekelwa okuncane.Uma kuqhathaniswa namamojula wesigaba se-waveguide ajwayelekile, idivayisi ine-oda okungenani yokunciphisa ubukhulu besikhala nokusetshenziswa kwamandla.Okuqukethwe okuhlobene kushicilelwe ku-Nature Photonics.
UMichal Lipson, uchwepheshe ophambili emkhakheni wezithombe ezididiyelwe, ezisekelwe ku-silicon nitride, uthe: “Isihluthulelo sesixazululo sethu esihlongozwayo ukusebenzisa i-optical resonator futhi sisebenze endaweni ebizwa ngokuthi yi-coupling state eqinile.”
I-optical resonator iyisakhiwo esivumelana kakhulu, esingaguqula inkomba encane ye-refractive ibe ushintsho lwesigaba ngokusebenzisa imijikelezo eminingi yemishayo yokukhanya.Ngokuvamile, ingahlukaniswa ibe yizifunda ezintathu ezihlukene zokusebenza: "ngaphansi kokuhlanganisa" kanye "ngaphansi kokuhlanganisa."Ukuhlanganisa okubalulekile” kanye “nokuxhumana okuqinile.”Phakathi kwazo, "ngaphansi kokuhlanganisa" kunganikeza kuphela ukushintshwa kwesigaba esilinganiselwe futhi kuzokwethula izinguquko ze-amplitude ezingadingekile, futhi "ukuhlanganisa okubalulekile" kuzodala ukulahlekelwa okukhulu kokubona, ngaleyo ndlela kuthinte ukusebenza kwangempela kwedivayisi.
Ukuze kuzuzwe ukushintshwa kwesigaba esingu-2π okuphelele kanye noshintsho oluncane lwe-amplitude, ithimba labacwaningi lisebenzise i-microring esimweni "sokuhlanganisa okuqinile".Amandla okuhlanganisa phakathi kwe-microring kanye “nebhasi” aphakeme ngokuphindwe kashumi kunokulahlekelwa yi-microring.Ngemuva kochungechunge lwemiklamo nokwenza kahle, isakhiwo sokugcina siboniswa esithombeni esingezansi.Lena indandatho enomsindo enobubanzi obucijile.Ingxenye encane ye-waveguide ithuthukisa amandla okuhlangana okubonakalayo phakathi "kwebhasi" kanye nekhoyili encane.Ingxenye ebanzi ye-waveguide Ukulahlekelwa ukukhanya kwe-microring kuncishiswa ngokunciphisa ukuhlakazeka kwe-optical kodonga oluseceleni.
U-Heqing Huang, umbhali wokuqala waleli phepha, uphinde wathi: “Siklame imodulator yesigaba sokukhanya esincane, eyonga amandla, nelahleka kakhulu ene-radius engu-5 μm kuphela kanye nokusetshenziswa kwamandla okushintshwa kwesigaba esingu-π kuphela. 0.8 mW.Ukwehluka kwe-amplitude okwethulwe kungaphansi kwe-10%.Okuyivelakancane ukuthi le moduli isebenza ngokulinganayo kumabhendi anzima kakhulu aluhlaza okwesibhakabhaka naluhlaza ku-spectrum ebonakalayo.”
U-Nanfang Yu uphinde waveza ukuthi nakuba bekude nokufinyelela izinga lokuhlanganiswa kwemikhiqizo ye-elekthronikhi, umsebenzi wabo uye wanciphisa kakhulu igebe phakathi kokushintshwa kwe-photonic nokushintshwa kwe-electronic."Uma ubuchwepheshe be-modulator bangaphambilini buvumela kuphela ukuhlanganiswa kwamamoduli wesigaba se-waveguide angu-100 anikezwe indawo ethile ye-chip footprint kanye nesabelomali samandla, khona-ke manje sesingahlanganisa ama-shifter wesigaba angu-10,000 ku-chip efanayo ukuze sifeze umsebenzi oyinkimbinkimbi."
Ngamafuphi, le ndlela yokuklama ingasetshenziswa kuma-modulators we-electro-optic ukunciphisa indawo ehlala abantu kanye nokusetshenziswa kwamandla kagesi.Ingasetshenziswa futhi kwezinye izigaba ze-spectral kanye neminye imiklamo ehlukene ye-resonator.Njengamanje, ithimba locwaningo liyasebenzisana ukuze libonise i-LIDAR ye-spectrum ebonakalayo eyakhiwe ngama-arrays ashintshayo esigaba asekelwe kulawo ma-microrings.Ngokuzayo, ingaphinda isetshenziswe ezinhlelweni eziningi ezifana ne-optical nonlinearity ethuthukisiwe, amalaser amasha, nama-quantum optics amasha.
Umthombo we-athikili: https://mp.weixin.qq.com/s/O6iHstkMBPQKDOV4CoukXA
I-Beijing Rofea Optoelectronics Co., Ltd. etholakala “eSilicon Valley” yaseChina – Beijing Zhongguancun, iyibhizinisi lobuchwepheshe obuphezulu elizinikele ekuhlinzekeni izikhungo zocwaningo zasekhaya nezangaphandle, izikhungo zocwaningo, amanyuvesi kanye nabasebenzi bocwaningo lwesayensi ebhizinisi.Inkampani yethu ibambe iqhaza kakhulu ocwaningweni nasekuthuthukisweni okuzimele, ukuklama, ukukhiqiza, ukuthengiswa kwemikhiqizo ye-optoelectronic, futhi ihlinzeka ngezixazululo ezintsha nezinsizakalo eziqeqeshiwe, ezenzelwe wena uqobo abacwaningi besayensi nonjiniyela bezimboni.Ngemva kweminyaka eminingi yokusungula izinto ezizimele, iye yakha uchungechunge olucebile noluphelele lwemikhiqizo ye-photoelectric, esetshenziswa kabanzi kumasipala, ezempi, ezokuthutha, amandla kagesi, ezezimali, ezemfundo, ezokwelapha nezinye izimboni.
Sibheke ngabomvu ukubambisana nawe!
Isikhathi sokuthumela: Mar-29-2023