Karolo ea filimi e tšesaane ea lithium niobate ho electro-optic modulator

Karolo ea filimi e tšesaane ea lithium niobate kamochine oa motlakase oa motlakase
Ho tloha qalong ea indasteri ho fihlela joale, bokhoni ba puisano ea fiber e le 'ngoe bo eketsehile ka makhetlo a limilione,' me palo e nyenyane ea lipatlisiso tsa morao-rao e fetile makhetlo a limilione tse mashome. Lithium niobate e phethile karolo e kholo bohareng ba indasteri ea rona. Matsatsing a pele a puisano ea fiber ea optical, ho feto-fetoha ha lets'oao la optical ho ne ho hlophisitsoe ka kotloloho holaser. Mokhoa ona oa ho feto-fetoha o amoheleha ho bandwidth e tlase kapa lits'ebetsong tse hole tse khutšoane. Bakeng sa ho feto-fetoha ha lebelo le phahameng le lits'ebetso tsa sebaka se selelele, ho tla ba le li-bandwidth tse sa lekaneng 'me mocha oa phetisetso o theko e boima haholo ho fihlella lits'ebetso tsa sebaka se selelele.
Bohareng ba puisano ea fiber ea optical, ho feto-fetoha ha lets'oao ho potlakile ebile ho potlakile ho kopana le keketseho ea matla a puisano, 'me mokhoa oa ho feto-fetoha ha optical o qala ho arohana,' me mekhoa e fapaneng ea ho feto-fetoha ha molumo e sebelisoa ka marang-rang a sebaka se khuts'oane le marang-rang a malelele a kutu. . Ho feto-fetoha ha theko e tlaase ka ho toba ho sebelisoa marang-rang a sebaka se khuts'oane, 'me "electro-optic modulator" e arohaneng e sebelisoa ho marang-rang a marang-rang a malelele, a arohaneng le laser.
Electro-optic modulator e sebelisa sebopeho sa tšitiso ea Machzender ho fetola lets'oao, leseli ke leqhubu la motlakase, tšitiso e tsitsitseng ea motlakase e hloka maqhubu a taolo a tsitsitseng, mohato le polarization. Hangata re bua ka lentsoe, le bitsoang interference fringes, light and dark fringes, e khanyang ke sebaka seo ho kena-kenana ha motlakase ho matlafatsoang, lefifi ke sebaka seo tšitiso ea motlakase e etsang hore matla a fokotsehe. Mahzender ho kena-kenana ke mofuta oa interferometer e nang le mohaho o khethehileng, e leng phello ea ho kena-kenana e laoloang ke ho laola mohato oa sefate se le seng ka mor'a ho arola sefate. Ka mantsoe a mang, sephetho sa tšitiso se ka laoloa ka ho laola karolo ea tšitiso.
Lithium niobate thepa ena e sebelisoa puisanong ea optical fiber, ke hore, e ka sebelisa boemo ba motlakase (letšoao la motlakase) ho laola mohato oa leseli, ho finyella ho feto-fetoha ha lets'oao la leseli, e leng kamano pakeng tsa electro-optical. modulator le lithium niobate. Modulator ea rona e bitsoa electro-optic modulator, e hlokang ho nahana ka bobeli botšepehi ba lets'oao la motlakase le boleng ba ho feto-fetoha ha lets'oao la optical. Bophahamo ba lets'oao la motlakase la indium phosphide le silicon photonics bo betere ho feta ba lithium niobate, mme matla a lets'oao la optical a fokola hanyane empa a ka sebelisoa, e leng se etsang hore ho be le mokhoa o mocha oa ho nka monyetla oa mmaraka.
Ntle le lisebelisoa tsa bona tse ntle tsa motlakase, indium phosphide le silicon photonics li na le melemo ea miniaturization le ho kopanya hore lithium niobate ha e na eona. Indium phosphide e nyane ho feta lithium niobate 'me e na le tekanyo e phahameng ea ho kopanya,' me silicon photon e nyenyane ho feta indium phosphide 'me e na le tekanyo e phahameng ea ho kopanya. Hlooho ea lithium niobate e lemodutharae bolelele ba makhetlo a mabeli ho feta indium phosphide, 'me e ka ba modulator feela' me e ke ke ea kopanya mesebetsi e meng.
Hona joale, modulator ea electro-optical e kene nakong ea tekanyo ea matšoao a limilione tse likete tse 100, (128G ke 128 limilione tse likete), 'me lithium niobate e boetse e kentse ntoeng ea ho kenya letsoho tlhōlisanong,' me e tšepa ho etella pele nako ena haufinyane. bokamoso, ho etella pele ho kena 'marakeng oa litekanyetso tsa matšoao a limilione tse likete tse 250. Bakeng sa lithium niobate ho tsosolosa 'maraka ona, hoa hlokahala ho hlahloba hore na indium phosphide le silicon photon li na le eng, empa lithium niobate ha e eo. Ke bokhoni ba motlakase, kopanyo e phahameng, miniaturization.
Phetoho ea lithium niobate e lutse ka mahlakoreng a mararo, Angle ea pele ke mokhoa oa ho ntlafatsa matla a motlakase, Angle ea bobeli ke mokhoa oa ho ntlafatsa ho kopanya, 'me Angle ea boraro ke mokhoa oa ho fokotsa. Tharollo ea li-angles tsena tse tharo tsa tekheniki e hloka ketso e le 'ngoe feela, ke hore, ho tšesaane filimi ea lithium niobate, ho ntša lesela le tšesaane haholo la lisebelisoa tsa lithium niobate e le waveguide ea optical, o ka hlophisa bocha eleketrode, oa ntlafatsa matla a motlakase, oa ntlafatsa. bandwidth le katleho ea modulation ea lets'oao la motlakase. Ntlafatsa bokhoni ba motlakase. Filimi ena e ka boela ea kopanngoa le sephaphatha sa silicon, ho finyella motsoako o tsoakiloeng, lithium niobate e le modulator, karolo e setseng ea silicon photon integration, bokhoni ba silicon photon miniaturization bo totobetse ho bohle, filimi ea lithium niobate le silicon e kopantsoeng ka leseli, ho ntlafatsa ho kopanya. , miniaturization e fihletsoeng ka tlhaho.
Haufinyane, modulator ea electro-optical e haufi le ho kena nakong ea tekanyo ea matšoao a limilione tse likete tse 200, bothata ba optical ba indium phosphide le silicon photons bo ntse bo bonahala haholoanyane, 'me molemo oa optical oa lithium niobate o ntse o eketseha le ho feta. e hlahelletseng, 'me filimi e tšesaane ea lithium niobate e ntlafatsa bofokoli ba thepa ena e le modulator,' me indasteri e shebana le "filimi ena e tšesaane ea lithium. niobate”, ke hore, filimi e tšesaanelithium niobate modulator. Ena ke karolo ea filimi e tšesaane ea lithium niobate tšimong ea li-electro-optical modulators.