Matsayin fim ɗin bakin ciki na lithium niobate a cikin injin na'urar lantarki

Matsayin bakin ciki fim na lithium niobate inelectrooptic modulator
Tun daga farkon masana'antar har zuwa yau, karfin sadarwar fiber guda daya ya karu da miliyoyin lokuta, kuma karamin adadin bincike-bincike ya wuce dubunnan miliyoyin lokuta. Lithium niobate ya taka muhimmiyar rawa a tsakiyar masana'antar mu. A farkon kwanakin sadarwar fiber na gani, an daidaita siginar siginar kai tsaye akan na'urarLaser. Ana yarda da wannan yanayin daidaitawa a cikin ƙaramin bandwidth ko aikace-aikacen ɗan gajeren nesa. Don saurin daidaitawa da aikace-aikacen nesa mai nisa, za a sami ƙarancin bandwidth kuma tashar watsawa ta yi tsada sosai don saduwa da aikace-aikacen nesa mai nisa.
A tsakiyar hanyar sadarwa ta fiber na gani, siginar siginar yana da sauri da sauri don saduwa da haɓakar ƙarfin sadarwa, kuma yanayin siginar siginar na gani ya fara rabuwa, kuma ana amfani da hanyoyin daidaitawa daban-daban a cikin hanyar sadarwar gajeriyar hanya da hanyar sadarwar gangar jikin mai nisa. . Ana amfani da gyare-gyaren kai tsaye mai rahusa a cikin sadarwar ɗan gajeren nesa, kuma ana amfani da wani “electro-optic modulator” daban-daban a cikin sadarwar gangar jikin mai nisa, wanda ke rabu da laser.
Electro-optic modulator yana amfani da tsarin tsangwama na Machzender don daidaita sigina, haske shine igiyoyin lantarki, tsangwama na igiyoyin lantarki yana buƙatar mitar sarrafawa, lokaci da polarization. Sau da yawa muna ambaton wata kalma, da ake kira tsangwama, haske da gefuna masu duhu, mai haske shine wurin da ake haɓaka kutse na lantarki, duhu shine wurin da kutsewar lantarki ke haifar da rauni. Tsangwama na Mahzender wani nau'i ne na interferometer tare da tsari na musamman, wanda shine tasirin tsangwama wanda aka sarrafa ta hanyar sarrafa lokaci na katako guda bayan raba katako. A wasu kalmomi, ana iya sarrafa sakamakon kutse ta hanyar sarrafa lokacin tsangwama.
Lithium niobate ana amfani da wannan kayan a cikin sadarwar fiber na gani, wato, yana iya amfani da matakin ƙarfin lantarki (siginar lantarki) don sarrafa lokacin hasken, don cimma daidaituwar siginar hasken, wanda shine alaƙar da ke tsakanin na'urar gani ta lantarki. Modulator da lithium niobate. Ana kiran na'urar mu'amala da na'urar motsa jiki ta lantarki, wanda ke buƙatar la'akari da amincin siginar lantarki da ingancin siginar gani. Ƙarfin siginar lantarki na indium phosphide da silicon photonics ya fi na lithium niobate, kuma ƙarfin siginar gani ya ɗan yi rauni amma kuma ana iya amfani da shi, wanda ke haifar da sabuwar hanya don cin gajiyar damar kasuwa.
Baya ga kyawawan kaddarorinsu na lantarki, indium phosphide da silicon photonics suna da fa'idodin ƙaranci da haɗin kai wanda lithium niobate ba shi da shi. Indium phosphide ya kasance karami fiye da lithium niobate kuma yana da digirin haɗin kai mafi girma, kuma silicon photons sun fi indium phosphide ƙarami kuma suna da digirin haɗin kai mafi girma. Shugaban lithium niobate as amai daidaitawaya ninka tsawon indium phosphide sau biyu, kuma yana iya zama mai daidaitawa kawai kuma baya iya haɗa wasu ayyuka.
A halin yanzu, na'ura mai sarrafa na'ura mai amfani da wutar lantarki ya shiga zamanin da ya kai biliyan 100, (128G shine biliyan 128), kuma lithium niobate ya sake yin gwagwarmayar shiga gasar, kuma yana fatan zai jagoranci wannan zamani a nan kusa. nan gaba, ɗaukar jagoranci a cikin shiga kasuwar ƙimar alama ta biliyan 250. Domin lithium niobate ya sake kwato wannan kasuwa, ya zama dole a yi nazarin abin da indium phosphide da silicon photons suke da shi, amma lithium niobate ba ya. Wannan shine ƙarfin lantarki, babban haɗin kai, ƙarami.
Canjin lithium niobate yana cikin kusurwoyi uku, kusurwa na farko shine yadda za'a inganta ƙarfin lantarki, kusurwa na biyu shine yadda za'a inganta haɗin kai, kuma kusurwa na uku shine yadda za'a rage girman. Maganin waɗannan kusurwoyi na fasaha guda uku yana buƙatar aiki ɗaya kawai, wato, don yin fim ɗin bakin ciki na kayan lithium niobate, fitar da wani ɗan ƙaramin bakin ciki na kayan lithium niobate a matsayin mai ɗaukar hoto na gani, zaku iya sake fasalin lantarki, haɓaka ƙarfin lantarki, haɓakawa. da bandwidth da daidaitawa ingancin siginar lantarki. Inganta ƙarfin lantarki. Hakanan za'a iya haɗa wannan fim ɗin zuwa wafer siliki, don cimma haɗaɗɗiyar haɗaɗɗiyar, lithium niobate azaman modulator, sauran haɗin haɗin silicon photon, ikon miniaturization na silicon photon a bayyane yake ga kowa, fim ɗin lithium niobate da hasken siliki gauraye haɗin kai, haɓaka haɗin kai. , ta halitta samu miniaturization.
Nan gaba kadan, na’urar sarrafa wutar lantarki na daf da shiga zamanin da ya kai biliyan 200 na alamar alama, rashin lahani na indium phosphide da silicon photons yana kara fitowa fili, kuma fa’idar lithium niobate tana kara karuwa. fitaccen fim din lithium niobate na bakin ciki yana inganta rashin amfani da wannan kayan a matsayin mai daidaitawa, kuma masana'antar ta mayar da hankali kan wannan "fim na bakin ciki lithium niobate", wato, fim din bakin ciki.lithium niobate modulator. Wannan ita ce rawar lithium niobate na fim na bakin ciki a fagen na'urorin daidaitawa na lantarki.