Indima yefilimu elincanyana le-lithium niobate kumodeli ye-electro-optic

Indima yefilimu elincanyana le-lithium niobate ini-electro-optic module
Kusukela ekuqaleni kwemboni kuze kube manje, amandla okuxhumana ngefayibha eyodwa akhule ngezigidi zezikhathi, futhi isibalo esincane socwaningo olusezingeni eliphezulu seludlule izikhathi ezingamashumi ezigidi. I-Lithium niobate idlale indima enkulu phakathi nemboni yethu. Ezinsukwini zokuqala zokuxhumana kwe-fiber optical, ukushintshwa kwesiginali ye-optical kwakushunwe ngokuqondile ku-laser. Le ndlela yokushintshashintsha iyamukeleka kumkhawulokudonsa ophansi noma ezinhlelweni zebanga elifushane. Ngokushintshwa kwesivinini esikhulu kanye nezicelo zebanga elide, kuzoba nomkhawulokudonsa owanele futhi ishaneli yokudlulisela ibiza kakhulu ukuhlangabezana nezicelo zebanga elide.
Phakathi nokuxhumana kwe-fiber optical, ukuguquguquka kwesignali kuyashesha futhi kuyashesha ukuhlangabezana nokwanda kwamandla okuxhumana, futhi imodi yokushintsha isignali ye-optical iqala ukuhlukana, futhi izindlela ezihlukene zokuguquguquka zisetshenziswa ekuxhumaneni okude kanye nokuxhumana kwe-trunk okude. Ukuguquguquka okuqondile okungabizi kakhulu kusetshenziswa kunethiwekhi yebanga elifushane, futhi "i-electro-optic modulator" ehlukile isetshenziswa kunethiwekhi ye-trunk yebanga elide, ehlukaniswe ne-laser.
Imoduli ye-Electro-optic isebenzisa isakhiwo sokuphazanyiswa kwe-Machzender ukulinganisa isignali, ukukhanya kuyigagasi kagesi, ukuphazamiseka okuzinzile kwe-electromagnetic wave kudinga imvamisa yokulawula ezinzile, isigaba kanye ne-polarization. Sivame ukusho igama, elibizwa ngokuthi ama-interference fringes, ama-fringe akhanyayo namnyama, ukukhanya kuyindawo lapho ukuphazamiseka kukazibuthe kuthuthukiswa khona, ubumnyama indawo lapho ukuphazamiseka kukazibuthe kwenza amandla abe buthaka. Ukuphazamiseka kwe-Mahzender kuwuhlobo lwe-interferometer enesakhiwo esikhethekile, okuwumphumela wokuphazamiseka olawulwa ngokulawula isigaba se-beam efanayo ngemva kokuhlukanisa ugongolo. Ngamanye amazwi, umphumela wokuphazamiseka ungalawulwa ngokulawula isigaba sokuphazanyiswa.
I-Lithium niobate le nto isetshenziselwa ukuxhumana kwe-fiber optical, okungukuthi, ingasebenzisa izinga le-voltage (isignali kagesi) ukulawula isigaba sokukhanya, ukufeza ukuguquguquka kwesignali yokukhanya, okuwubudlelwane phakathi kwe-modulator ye-electro-optical kanye ne-lithium niobate. Imoduli yethu ibizwa nge-electro-optic modulator, edinga ukucabangela kokubili ubuqotho besiginali kagesi kanye nekhwalithi yokushintsha kwesignali yokubona. Umthamo wesignali kagesi we-indium phosphide ne-silicon photonics ungcono kunalowo we-lithium niobate, futhi umthamo wesignali yokubona ubuthakathaka kancane kodwa ungasetshenziswa, okudala indlela entsha yokubamba ithuba lemakethe.
Ngaphandle kwezakhiwo zabo ezinhle kakhulu zikagesi, i-indium phosphide ne-silicon photonics inezinzuzo ze-miniaturization nokuhlanganiswa ukuthi i-lithium niobate ayinayo. I-Indium phosphide incane kune-lithium niobate futhi inezinga eliphezulu lokuhlanganisa, futhi ama-silicon photon mancane kune-indium phosphide futhi anezinga eliphezulu lokuhlanganisa. Inhloko ye-lithium niobate njenge-aimoduliubude obuphindwe kabili kune-indidium phosphide, futhi ingaba imoduli kuphela futhi ayikwazi ukuhlanganisa eminye imisebenzi.
Njengamanje, i-modulator ye-electro-optical ingene enkathini yesilinganiso se-symbol eyizigidi eziyizinkulungwane ezingu-100, (i-128G iyizigidi eziyizinkulungwane ezingu-128), futhi i-lithium niobate isiphinde yafaka impi yokubamba iqhaza emncintiswaneni, futhi inethemba lokuhola lesi sikhathi esikhathini esizayo esiseduze, ihola ekungeneni emakethe yezilinganiso ze-250 billion. Ukuze i-lithium niobate iphinde ibambe le makethe, kuyadingeka ukuhlaziya ukuthi i-indium phosphide nama-silicon photon anayo, kodwa i-lithium niobate ayinayo. Lokho amandla kagesi, ukuhlanganiswa okuphezulu, i-miniaturization.
Ukushintsha kwe-lithium niobate kungama-engeli amathathu, i-Angle yokuqala yindlela yokuthuthukisa amandla kagesi, i-Angle yesibili yindlela yokuthuthukisa ukuhlanganiswa, kanti i-Angle yesithathu yindlela yokwenza kancane. Isixazululo kulawa ma-engeli amathathu obuchwepheshe sidinga isenzo esisodwa kuphela, okungukuthi, ukwenza ifilimu encane yezinto ze-lithium niobate, khipha ungqimba oluncane lwe-lithium niobate njenge-waveguide optical, ungakwazi ukuhlela kabusha i-electrode, uthuthukise umthamo kagesi, uthuthukise umkhawulokudonsa kanye nokusebenza kahle kokuguquguquka kwesignali kagesi. Thuthukisa ikhono likagesi. Le filimu ingabuye ifakwe ku-silicon wafer, ukuze kuzuzwe ukuhlanganiswa okuxubile, i-lithium niobate njenge-modulator, konke okunye ukuhlanganiswa kwe-silicon photon, ikhono le-silicon photon miniaturization libonakala kubo bonke, ifilimu ye-lithium niobate kanye nokuhlanganiswa kokukhanya kwe-silicon ukukhanya okuxubile, ukuthuthukisa ukuhlanganiswa, ukutholakala kwe-miniaturization ngokwemvelo.
Esikhathini esizayo esiseduze, i-modulator ye-electro-optical isizongena enkathini yesilinganiso se-200 bhiliyoni, ukungalungi kwamehlo kwe-indium phosphide ne-silicon photons kuya kuba sobala kakhulu, futhi inzuzo yokubona ye-lithium niobate iya ngokuya igqama, futhi ifilimu ye-lithium niobate encane ithuthukisa ubungozi bemboni ye-lithium njengengxenye yembonini ye-lithium, ukugxila kule filimu. niobate”, okungukuthi, ifilimu elincanyanai-lithium niobate modulator. Lena indima yefilimu elincanyana i-lithium niobate emkhakheni we-electro-optical modulators.