Qhov kev thov rau cov yas fiber ntau tau nce sai heev
Tom qab xyoo dhau los ntawm kev siv zog ua haujlwm, Suav cov kws tshawb fawb thaum kawg tau kov yeej cov teeb meem kev teeb meem ntawm kev tsim ncaj qha polymethyl methacrylate (PMMA) mutant yas optical fiber los ntawm tej polymerization, thiab tau mastered thev naus laus zis kev lag luam ntau lawm ntawm cov yas kho qhov muag. Lub koom haum ntawm Physics thiab Science News for KIDS ntawm Suav Academy ntawm Kev Tshawb Fawb tau tsim ntau lab ntawm cov hluav taws xob qis qis hloov yas kho qhov muag, rhuav tshem kev cuam tshuam ntawm cov tuam txhab Nyij Pooj hauv ntiaj teb.
Nyob rau hauv xyoo tas los no, qhov kev thov thoob ntiaj teb rau cov yas fiber ntau tau nce nrawm dua. Nyob rau xyoo 2005, kev muag khoom thoob ntiaj teb ntawm PMMA yas kho qhov muag fiber ntau tau mus txog ntau lab. Kev poob qis PMMA yas optical fiber haum rau cov ntaub ntawv xa khoom tam sim no tsuas yog tsim los ntawm Mitsubishi Corporation ntawm Nyij Pooj. Txhua xyoo, kuv lub teb chaws tuaj nqa ntau ntau ntawm PMMA yas kho qhov muag fiber ntau los ntawm Nyij Pooj.
Cov thawj coj hauv phiaj xwm Zhen Zhen thiab Tshawb Fawb Liu Xinhou tau qhia tias lub koom haum ntawm Physics thiab Chemistry ntawm Suav Academy ntawm Kev Tshawb Fawb tau tshaj tawm cov qauv kev ua tiav ntawm cov thev naus laus zis rau kev ua kom huv ntawm cov ntaub ntawv nyoos thiab cov ntaub ntawv ncaj qha los ntawm fiber ntau los ntawm ntau cov polymerization. Nws qhov tseem ceeb thev naus laus zis yog kev npaj tshuab ntawm high-purity fiber-qib PMMA optical molding compound (cov khoom tseem ceeb) thiab cov khoom siv tawv nqaij. Thaum txoj kev txhim kho, lub koom haum ntawm Physics thiab Chemistry ntawm Suav Academy ntawm Kev Tshawb Fawb tau ua tiav kev tsim kho tshiab thev naus laus zis rau kev ua kom huv ntawm ib leeg-molecule diffusion hloov ntaub ntawv nrog cov khoom ntiag tug ntawm txoj cai kev ywj pheej, thiab feem ntau polymerization ntawm tiaj-thawb nyias-txheej tubular. thiab ntxaib-ntsia hlau sib txuas tshuab los npaj siab-purity fiber-qib PMMA cov ntaub ntawv thiab cov khoom ua tau raws cov khoom siv thev naus laus zis tau ua tiav cov teeb meem ntsig txog kev lag luam.
Tam sim no, lub koom haum tau ua tiav txoj kev sib dhos tsis siv neeg ua haujlwm nrog cov haujlwm txhua hnub ntawm 100,000 metres ntawm PMMA yas kho qhov muag, thiab tau tsim PMMA optical fiber nrog kev kho qhov muag ntawm 170-200dB / km rau ntau lub hlis, thiab tau tsim ntau lab ntawm cov meters ntawm kev poob qis cov yas optical fiber ntau, qhia txog qhov Kev Tsim Kev Siv Tshuab no tau dhau los. Nyob rau tib lub sijhawm, lub tsev haujlwm tseem muaj lub peev xwm loj los tsim cov theem-hom PMMA fibers nrog qhov muag pom ntawm 150dB / km, thiab cov khoom lag luam ntsuas tau nce mus txog qib zoo tshaj plaws ntawm cov khoom zoo sib xws hauv ntiaj teb. Cov theem pib ntawm qis-attenuation PMMA fiber ntau nruam pawg ntau lawm tshuab cim kuv lub teb chaws' s qeb ntawm lub ntiaj teb' s siab heev hauv daim teb no.
Kev tsim tawm niaj hnub no' s cov ntaub ntawv siv thev naus laus zis xav tau cov ntaub ntawv fiber ntau sai sai nrog cov ntaub ntawv muaj peev xwm loj, thiab cov uas yuav tsum muaj rau kev sib txuas lus network bandwidth tau nce siab dua thiab siab dua. Yas optical fiber muaj qhov zoo ntawm cov tub ntxhais loj txoj kab uas hla, mos mos, yooj yim sib txuas, lub teeb yuag, tus nqi qis, thiab cov kis loj. Nws yog siv dav hauv cov tshuab network, network ntse hauv tsev network, cov ntaub ntawv xa mus, tsheb ntse tshuab, tshuab tswj kev lag luam, thiab textiles. , Cov teeb pom kev zoo, kev siv hluav taws xob hnub ci kev siv tshuab thiab lwm yam ntawm cov ntawv thov kev lag luam muaj peev xwm loj heev.
