Indima yefilimu encinci ye-lithium niobate kwimodyuli ye-electro-optic

Indima yefilimu encinci ye-lithium niobate kwiimodyuli ye-electro-optic
Ukususela ekuqaleni kweshishini ukuza kuthi ga ngoku, amandla onxibelelwano lwefayibha enye anyuke ngezigidi zamaxesha, kwaye inani elincinci lophando olucekeceke ligqithise amashumi ezigidi zamaxesha. I-Lithium niobate idlale indima enkulu embindini weshishini lethu. Kwiintsuku zokuqala zonxibelelwano lwefiber optical, ukumodareyithwa kwesiginali ye-optical kwalungiswa ngokuthe ngqo kwilaser. Le ndlela yokumodareyitha iyamkeleka kwi-bandwidth ephantsi okanye izicelo zomgama omfutshane. Ukumodareyitha kwesantya esiphezulu kunye nezicelo zomgama omde, kuya kubakho i-bandwidth engonelanga kwaye umjelo wothumelo ubiza kakhulu ukuhlangabezana nezicelo zomgama omde.
Embindini wonxibelelwano lwefiber optical, ukumodareyitha komqondiso kukhawuleza kwaye ngokukhawuleza ukuhlangabezana nokunyuka kwamandla onxibelelwano, kwaye imowudi yokumodareyitha i-optical signal iqala ukuhlukana, kunye neendlela ezahlukeneyo zokumodareyitha zisetyenziselwa uthungelwano olude kunye nothungelwano olude lomgama we-trunk. Ukumodareyitha ngokuthe ngqo kwexabiso eliphantsi kusetyenziswa kwinethiwekhi emfutshane, kwaye "i-modulator ye-electro-optic" eyahlukileyo isetyenziselwa i-trank networking networking networking, eyahlukana ne-laser.
Imodyuli ye-Electro-optic isebenzisa ubume bokuphazamiseka kweMachzender ukumodareyitha isiginali, ukukhanya ngamaza ombane, uphazamiso oluzinzileyo lwe-electromagnetic wave lufuna ulawulo oluzinzileyo, isigaba kunye nepolarization. Sihlala sikhankanya igama, elibizwa ngokuba yi-interference fringes, ukukhanya kunye nemiphetho emnyama, eqaqambileyo yindawo apho uphazamiseko lwe-electromagnetic luphuculwa khona, ubumnyama yindawo apho ukuphazamiseka kombane kubangela ukuba amandla abe buthathaka. Ukuphazamiseka kwe-Mahzender luhlobo lwe-interferometer enesakhiwo esikhethekileyo, esiyimpembelelo yokuphazamiseka elawulwa ngokulawula isigaba sombhobho omnye emva kokuhlukanisa umqadi. Ngamanye amazwi, umphumo wokuphazamiseka unokulawulwa ngokulawula isigaba sokuphazamiseka.
I-Lithium niobate le nto isetyenziselwa ukunxibelelana kwe-fiber optical, oko kukuthi, inokusebenzisa inqanaba le-voltage (umqondiso wombane) ukulawula isigaba sokukhanya, ukufezekisa ukumodareyitha komqondiso wokukhanya, okubudlelwane phakathi kwe-modulator ye-electro-optical kunye ne-lithium niobate. Imodareyitha yethu ibizwa ngokuba yi-electro-optic modulator, ekufuneka ithathele ingqalelo zombini ingqibelelo yesiginali yombane kunye nomgangatho wokumodareyitha wesiginali ye-optical. Umthamo wesiginali yombane we-indium phosphide kunye ne-silicon photonics ingcono kune-lithium niobate, kwaye umthamo wesignali ye-optical ubuthathaka kancinci kodwa unokusetyenziswa, okudala indlela entsha yokubamba ithuba lentengiso.
Ukongeza kwiipropati zabo ezintle zombane, i-indium phosphide kunye ne-silicon photonics zineenzuzo ze-miniaturization kunye nokudibanisa ukuba i-lithium niobate ayinayo. I-Indium phosphide incinci kune-lithium niobate kwaye inezinga eliphezulu lokudibanisa, kunye neefotoni ze-silicon zincinci kune-indium phosphide kwaye zinezinga eliphezulu lokudibanisa. Intloko ye-lithium niobate njengeimodyuliiphindwe kabini ubude be-indium phosphide, kwaye ingaba yimodyuli kwaye ayikwazi ukudibanisa eminye imisebenzi.
Okwangoku, imodyuli ye-electro-optical ingene kwixesha le-100 yeebhiliyoni zesimboli, (i-128G yi-128 yezigidigidi), kwaye i-lithium niobate iphinde yabeka idabi lokuthatha inxaxheba kukhuphiswano, kwaye inethemba lokukhokela eli xesha kwikamva elingekude, likhokela ekungeneni kwimarike ye-250 yebhiliyoni yesimboli. Ukuze i-lithium niobate iphinde ithathe le marike, kuyimfuneko ukuhlalutya ukuba yiyiphi i-indium phosphide kunye ne-silicon photons, kodwa i-lithium niobate ayinayo. Oko kukukwazi kombane, ukudibanisa okuphezulu, i-miniaturization.
Utshintsho lwe-lithium niobate lulele kwii-angles ezintathu, i-Angle yokuqala yindlela yokuphucula amandla ombane, i-Angle yesibini yindlela yokuphucula ukudibanisa, kwaye i-Angle yesithathu yindlela yokwenza i-miniaturize. Isisombululo kwezi engile ezintathu zobugcisa kufuna inyathelo elinye kuphela, oko kukuthi, ukuba ifilimu obhityileyo izinto lithium niobate, athathe umaleko obhityileyo kakhulu lithium niobate izinto njenge waveguide optical, uyakwazi ukuyila ngokutsha i electrode, ukuphucula amandla ombane, ukuphucula ibhandwidth kunye nokumodareyitha ukusebenza komqondiso wombane. Ukuphucula amandla ombane. Le filimu inokudityaniswa ne-silicon wafer, ukuphumeza ukuhlanganiswa okuxubileyo, i-lithium niobate njenge-modulator, yonke i-silicon photon integration, i-silicon photon miniaturization isakhono ibonakala kubo bonke, ifilimu ye-lithium niobate kunye nokuhlanganiswa kokukhanya kwe-silicon ukukhanya okuxubeneyo, ukuphucula ukudibanisa, ukufezekiswa kwe-miniaturization ngokwemvelo.
Kungekudala, imodyuli ye-electro-optical imalunga nokungena kwixesha lama-200 eebhiliyoni zesimboli, ukungalungi kwe-indium phosphide kunye nesilicon iifotoni kuya kucaca ngakumbi nangakumbi, kwaye inzuzo ye-lithium niobate iya isiba ngakumbi kwaye ibonakale ngakumbi, kwaye ifilimu ye-lithium niobate ebhityileyo iphucula ukusilela kunye nefilimu ye-lithium ekugxilwe kuyo. niobate”, oko kukuthi, ifilimu ebhityileyoimodyuli ye-lithium niobate. Le yindima yefilimu encinci ye-lithium niobate kwintsimi ye-electro-optical modulators.