Cov kab hluav taws xob tshwj xeeb nrog cov cim tshwj xeeb ua kom pom qhov faib tawm

Dual-core fiber yog ib qho fiber ntau nrog tshwj xeeb refractive index faib. Nws tawg los ntawm qhov refractive index faib qauv ntawm cov pa kho qhov muag. Ob lub xaim txuas ob qho sib xyaw ua ke nyob rau hauv tib lub fiber ntau, tuaj yeem siv ua qhov khoom xa hluav taws xob nruab nrab thiab cov khoom siv kho qhov muag tshiab tuaj yeem tsim. Hauv lub sijhawm xyoo 1960, qee cov kws tshawb fawb tau kawm txog lub zog txuas ntawm lub teeb nruab nrab ntawm ob qho kev yoj hluav taws xob. Xyoo 1980, qhov kev sim tshawb xyuas qhov tseeb ntawm dual-core fiber ntau ua qhov tseem ceeb ntawm kev sib txuas ua ke hom kev tshawb xav. Nyob rau xyoo 1981, cov kws tshawb nrhiav tau siv dual-core optical fiber los ntsuas qhov sib piv ntawm txoj kab sib kis nkhaus thiab kev sib raug zoo ntawm txoj kab txuas txuas thiab cov xov hluav taws xob khoov tsim los tsim cov fiber ntau hom kho qhov muag txuas txuas. Thaum xyoo 1980s, cov kws tshawb nrhiav tau siv dual-core fiber ntau' s xaiv rau yoj yoj thiab tawg thiab nws cov yam ntxwv rau qhov pib siv dual-core fiber ntau rau cov khoom siv kho qhov muag, suav nrog kev ntsuas kub, kev ntxhov siab, thiab kev xa tawm. Tom qab, qhov tsis zoo ntawm cov xov tooj dual fiber ntau kuj tau kawm txog qhov ua tiav ntawm cov hom phiaj ntsuas phoo thiab cov khoom siv hluav taws xob txuas nrawm nrawm. Cov cuab yeej hluav taws xob fiber ntau ua raws li dual-core fibers muaj qhov zoo ntawm kev yooj yim thiab meej tswj ntawm cov cuab yeej loj, me me kev ntxhov siab hauv cheeb tsam txuas, ntau dua kev ua kom nruj thiab ruaj khov, thiab tsis tshua muaj kev cuam tshuam rau sab nraud. Lawv tau siv dav hauv ntau qhov chaw xws li kev hnov ​​thiab pom kev sib txuas lus. Reflected nyob rau hauv fiber lim, kho qhov muag interferometers, kho qhov muag txuas, fiber ntau amplifiers, kho qhov muag ntxiv / poob multiplexers, hloov fiber ntau, optical tweezers, thiab fiber ntau lub zog. Yog li no, kev kawm txog dual-core optical fiber muaj qhov tseem ceeb theoretical thiab cov ntsiab lus tseem ceeb. Raws li cov kev tshawb fawb tob zuj zus, nws yuav coj cov kev sib txuas tshiab rau kev sib txuas lus fiber ntau thiab kev kho qhov muag fiber ntau.