Mai sassaucin bipolarmai daidaita lokaci
A fagen sadarwa mai saurin gaske da fasahar kwantum, na'urorin zamani na zamani suna fuskantar matsaloli masu tsanani! Rashin isasshen tsarkin sigina, rashin sassauƙan tsarin sarrafawa, da kuma yawan amfani da wutar lantarki a tsarin - waɗannan ƙalubalen suna kawo cikas ga ci gaban fasaha.
Bipolarmai daidaita yanayin electro-opticalZa su iya cimma daidaiton matakai biyu na ci gaba na matakin siginar gani. Suna da babban haɗin kai, ƙarancin asarar shigarwa, babban bandwidth na daidaitawa, ƙarancin ƙarfin lantarki na rabin-wave, da kuma ƙarfin gani mai lalacewa. Ana amfani da su galibi don sarrafa chirp na gani a cikin tsarin sadarwa mai sauri da samar da yanayin da aka haɗa a cikin tsarin rarraba maɓallan quantum. Samar da madaurin gefe a cikin tsarin ROF da rage yawan Brillouin scattering (SBS) da aka ƙarfafa a cikin tsarin sadarwa na fiber na gani na analog, da sauran fannoni.
Themai daidaita yanayin bipolaryana cimma daidaitaccen iko na matakin siginar gani ta hanyar daidaita matakai biyu masu ci gaba, kuma musamman yana nuna ƙima ta musamman a cikin sadarwa mai sauri da rarraba maɓallan adadi.
1. Haɗakarwa mai yawa da kuma babban matakin lalacewa: Yana ɗaukar ƙirar da aka haɗa ta monolithic, girmanta ya yi ƙanƙanta, kuma yana tallafawa ƙarfin gani mai lalacewa mai yawa. Yana iya dacewa kai tsaye da tushen laser mai ƙarfi kuma ya dace da ingantaccen samar da madaurin gefe na milimita a cikin tsarin ROF (Wireless na gani).
2. Dakatar da Chirp da kuma kula da SBS: A cikin watsawa mai sauri mai sauri, layin layi nadaidaitawar lokacizai iya danne ƙarar siginar gani yadda ya kamata. A cikin sadarwa ta fiber optic na analog, ta hanyar inganta zurfin yanayin yanayin lokaci, tasirin Brillouin scattering (SBS) da aka ƙarfafa zai iya raguwa sosai, ta haka ne za a faɗaɗa nisan watsawa.
A cikin rarraba maɓallin quantum (QKD), yanayin da ke tattare da nau'ikan photon yana aiki a matsayin "maɓallin quantum" don sadarwa mai aminci - daidaiton shirye-shiryensa kai tsaye yana ƙayyade kadarar da ba ta jin sahihancin maɓallin. "Sauƙin" na mai daidaita yanayin bipolar yana nuna a cikin ikonsa na daidaita sigogin lokaci don daidaitawa da rikice-rikicen muhalli na hanyoyin haɗin fiber na gani daban-daban (kamar canjin zafin jiki da karkatar lokaci wanda damuwa ta injiniya ke haifarwa), yana tabbatar da ingantaccen samar da nau'ikan photon da aka haɗa. Ana samun "kwanciyar hankali" ta hanyar ingantaccen sarrafa zafin jiki da fasahar mitar kulle lokaci, wanda ke dakatar da hayaniyar lokaci a ƙasa da iyakar hayaniyar quantum kuma yana hana lalata yanayin quantum yayin watsawa. Wannan fasalin biyu na "sauƙin sassauci + kwanciyar hankali" ba wai kawai yana haɓaka ƙimar rarrabawar haɗuwa ta ɗan gajeren lokaci a cikin hanyoyin sadarwa na birni ba (kamar ƙimar kuskuren ɗan ƙasa da 1% a cikin kilomita 50), amma kuma yana tallafawa amincin maɓallai a cikin watsawa mai nisa a cikin hanyoyin sadarwa na tsakanin birane (kamar sama da kilomita ɗari a fadin birane), yana zama babban ɓangaren da ke da mahimmanci don gina hanyar sadarwa ta quantum "mai aminci gaba ɗaya".
Lokacin Saƙo: Yuli-22-2025