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 isignali ye-optical iqala ukwahlula, kwaye iindlela ezahlukeneyo zokumodareyitha zisetyenziselwa uthungelwano olumgama omfutshane kunye nothungelwano olude lomgama omde. . 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 isetyenziswa kunxibelelwano lwefiber optical, oko kukuthi, inokusebenzisa inqanaba lombane (umqondiso wombane) ukulawula isigaba sokukhanya, ukufezekisa ukumodareyitha komqondiso wokukhanya, olubudlelwane phakathi kwe-electro-optical. imodyuli 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 kungekudala. kwixesha elizayo, ukukhokela ekungeneni i-250 yeebhiliyoni zeebhiliyoni zomlinganiselo wemarike. 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 zintathu ze-engile zobugcisa zifuna isenzo esinye kuphela, oko kukuthi, ukucima ifilimu ye-lithium niobate, uthabathe umaleko obhityileyo kakhulu we-lithium niobate njenge-waveguide optical waveguide, unokuyilungisa ngokutsha i-electrode, uphucule umthamo wombane, uphucule. i-bandwidth kunye nokusebenza kakuhle kwe-modulation yesiginali yombane. Ukuphucula amandla ombane. Le filimu inokudityaniswa ne-silicon wafer, ukuphumeza ukuhlanganiswa okuxubileyo, i-lithium niobate njenge-modulator, ukuhlanganiswa kwe-silicon photon, amandla e-silicon photon miniaturization ayabonakala kubo bonke, ifilimu ye-lithium niobate kunye ne-silicon ukukhanya okuxubileyo, ukuphucula ukuhlanganiswa. , i-miniaturization efunyenwe ngokwemvelo.
Kungekudala, imodyuli ye-electro-optical sele iza kungena kwixesha le-200 yeebhiliyoni zeesimboli, i-optical disadvantage ye-indium phosphide kunye ne-silicon photons iya icaca ngakumbi nangakumbi, kwaye inzuzo ye-lithium niobate iya isiba ngakumbi nangakumbi. evelele, kunye nefilimu ye-lithium niobate ebhityileyo iphucula ukungahambi kakuhle kwesi sixhobo njengemodyuli, kwaye ishishini lijolise kule "filim ibhiliyoni ye-lithium niobate", oko kukuthi, ifilimu ebhityileyo.imodyuli ye-lithium niobate. Le yindima yefilimu encinci ye-lithium niobate kwintsimi ye-electro-optical modulators.