Mai sassaucin ra'ayilokaci modulator
A cikin fage na sadarwa mai sauri da fasahar ƙididdigewa, masu daidaitawa na gargajiya suna fuskantar matsananciyar cikas! Rashin isasshen tsabtar sigina, sarrafa lokaci mara sassauƙa, da yawan amfani da wutar lantarki mai yawa - waɗannan ƙalubalen suna hana ci gaban fasaha.
BipolarElectro-optical lokaci modulatorzai iya cimma ci gaba da daidaitawa mataki biyu na lokaci na siginar gani. Suna nuna babban haɗin kai, ƙarancin shigar da asarar, babban bandwidth na daidaitawa, ƙarancin wutar lantarki mai ƙarancin rabi, da babban lalatar ikon gani. Ana amfani da su musamman don sarrafa sautin ƙararrawa a cikin tsarin sadarwa mai sauri na gani da kuma ruɗewar jigo a cikin tsarin rarraba maɓalli na adadi. Ƙirƙirar ɓangarorin gefe a cikin tsarin ROF da rage haɓakar watsawar Brillouin (SBS) a cikin tsarin sadarwar fiber na gani na analog, a tsakanin sauran fannoni.
Thebipolar lokaci modulatoryana samun daidaitaccen iko na lokacin siginar gani ta hanyar matakan ci gaba na lokaci biyu, kuma musamman yana nuna ƙima na musamman a cikin babban saurin sadarwa na gani da rarraba maɓalli na ƙididdigewa.
1. Babban haɗin kai da babban ɓarna mai lalacewa: Yana ɗaukar ƙirar haɗakarwa ta monolithic, yana da ƙima a cikin girman, kuma yana goyan bayan babban lalacewar ikon gani. Yana iya zama mai dacewa kai tsaye tare da maɓuɓɓugan Laser mai ƙarfi kuma ya dace da ingantaccen ƙarni na ƙwanƙwasa ɗigon millimita a cikin tsarin ROF (Wireless Wireless).
2. Chirp suppression da SBS management: A cikin high-gudu conherent watsa, da linearity nayanayin daidaitawazai iya danne sautin siginar gani yadda ya kamata. A cikin sadarwar fiber na gani na analog, ta haɓaka zurfin yanayin daidaita yanayin lokaci, tasirin watsawar Brillouin (SBS) da aka motsa zai iya raguwa sosai, ta haka yana faɗaɗa nisan watsawa.
A cikin rarraba maɓalli na ƙididdigewa (QKD), yanayin maɓalli na nau'ikan photon yana aiki a matsayin "maɓallin ƙididdiga" don amintaccen sadarwa - daidaiton shirye-shiryensa yana ƙayyade kadarar maɓalli ba ta saurara ba. “Sassauƙan” na ƙirar lokaci na bipolar yana nunawa a cikin ikonsa na daidaita sigogin lokaci don dacewa da rikice-rikicen muhalli na hanyoyin haɗin fiber na gani daban-daban (kamar canjin yanayin zafi da ɓacin lokaci da damuwa na injina ke haifarwa), yana tabbatar da ingantaccen haɓakar tsararrun nau'ikan nau'ikan photon. Ana samun “kwanciyar hankali” ta hanyar daidaitaccen sarrafa zafin jiki da fasahar mitar kulle lokaci, wanda ke hana hayaniyar lokaci ƙasa da ƙayyadaddun amo da kuma hana rashin daidaituwar jihohin jimla yayin watsawa. Wannan nau'i biyu na "sassauci + kwanciyar hankali" ba wai yana haɓaka ƙimar rarraba gajeriyar nisa ba a cikin cibiyoyin sadarwa na birni (kamar ɗan ƙaramin kuskuren ƙasa da 1% a cikin kilomita 50), amma kuma yana goyan bayan amincin maɓallai a cikin watsa nesa mai nisa a cikin hanyoyin sadarwa (kamar sama da kilomita ɗari a fadin biranen), zama tushen tushen hanyar sadarwa.
Lokacin aikawa: Yuli-22-2025