Yog li, vim li cas qhov kev sib kis ceev ntawm kev sib txuas lus fiber ntau yog ceev heev? Kev sib txuas lus fiber ntau yog dab tsi? Dab tsi yog nws qhov zoo thiab qhov tsis zoo piv rau lwm txoj kev sib txuas lus? Nyob rau hauv cov cheeb tsam twg yog cov cuab yeej siv tam sim no?
Kev xa cov ntaub ntawv nrog lub teeb hauv fiberglass.
Raws li ib tug wired network, fiber-optic kev sib txuas lus tsis tuaj yeem ua tau raws li cov kev xav tau ntawm lub xov tooj ntawm tes. Nyob rau hauv lub neej niaj hnub, peb cov kev sib txuas lus mobile siv wireless networks, thiab muaj kev sib txuas lus kho qhov muag zoo li tsis muaj zog.
“Tab sis qhov tseeb, ntau tshaj 90% ntawm cov ntaub ntawv yog kis tau los ntawm fiber ntau optics.Lub xov tooj ntawm tes txuas nrog lub hauv paus chaw nres tsheb ntawm lub wireless network, thiab kev sib kis ntawm cov teeb liab ntawm lub hauv paus chaw nres tsheb feem ntau yog nyob ntawm cov khoom siv fiber ntau."Nws Zhixue, tus thawj coj ntawm Optical System Research Office ntawm Lub Xeev Lub Chaw Haujlwm Tseem Ceeb ntawm Optical Fiber Communication Network Technology, tau hais hauv kev xam phaj nrog Science thiab Technology Txhua Hnub.
Optical fiber yog ib qho khoom siv kho qhov muag uas nyias nyias zoo li cov plaub hau, tuaj yeem muab faus ncaj qha, nyiaj siv ua haujlwm, lossis muab tso rau hauv hiav txwv pem teb.Vim nws lub teeb yuag, yooj yim, thiab tus nqi qis ntawm cov khoom siv raw, nws thiaj li hloov cov kab loj loj. raws li lub mainstream teeb liab kis nruab nrab.
Txhawm rau muab nws yooj yim, kev sib txuas lus fiber ntau yog qhov kev siv ntawm kev sib txuas lus kho qhov muag, xws li tsom iav tsheb teeb, thiab lwm yam, lawv siv cov cua kom nthuav tawm lub teeb pom kev, belongs rau qhov pom kev sib txuas lus kho qhov muag yog siv iav fiber ntau hauv lub teeb. cov ntaub ntawv kis tau tus mob.
Tus kws kho qhov muag kev sib txuas lus tau hais rau sci-tech niaj hnub hais tias cov teeb liab kho qhov muag puas tsawg dua thaum sib kis dua li cov teeb liab hluav taws xob. Nws piav qhia tias, piv txwv li, lub teeb liab kho qhov muag ploj ntawm 1 txog 0.99 tom qab 100 mais, thaum lub teeb liab hluav taws xob ploj ntawm 1 txog 0.5 tom qab tsuas yog 1 km.
Los ntawm qhov pom ntawm lub hauv paus ntsiab lus, cov khoom siv tseem ceeb uas tsim cov kev sib txuas lus kho qhov muag fiber ntau yog optical fiber light source thiab optical detector.
Muaj peev xwm loj thiab muaj peev xwm kis tau tus mob mus ntev
Raws li cov lus ceeb toom, txoj kev zoo tshaj plaws ntawm kev siv fiber ntau optic broadband yog fiber-rau-lub tsev, uas yog, ncaj qha txuas cov fiber ntau mus rau qhov chaw uas tus neeg siv xav tau, kom nws tuaj yeem tau txais cov ntaub ntawv ntau los ntawm kev siv cov ntaub ntawv. fiber ntau.
"Txoj kev sib txuas lus wireless tau raug cuam tshuam los ntawm electromagnetic cuam tshuam, thiab txoj kev xa xov cable yog kim kim. Hauv qhov sib piv, kev sib txuas lus fiber ntau optical muaj qhov zoo ntawm lub peev xwm loj, muaj peev xwm kis tau tus mob mus ntev, tsis pub lwm tus paub, thiab muaj zog yoog raws. Ntxiv mus, fiber ntau yog me me thiab yooj yim rau siv. Kev tsim kho thiab kev saib xyuas, tus nqi raw khoom kuj tseem qis. " He Zhixue hais tias.
Txawm hais tias fiber-optic kev sib txuas lus muaj qhov zoo li saum toj no, nws tus kheej lub rooj tsav xwm luv luv tsis tuaj yeem tsis quav ntsej. Piv txwv li, cov fibers yog nkig thiab tawg yooj yim. Tsis tas li ntawd, kev txiav lossis kev sib txuas ntawm cov fiber ntau yuav tsum tau siv cov cuab yeej tshwj xeeb. Nws yuav tsum raug sau tseg tias kev tsim kho hauv nroog lossis kev puas tsuaj ntuj tuaj yeem ua rau cov kab tsis ua haujlwm tau yooj yim.
Hauv kev siv cov tswv yim, kev paub txog kev xa khoom fiber ntau feem ntau yog nyob ntawm lub tshuab xa hluav taws xob kawg thiab lub tshuab txais kho qhov muag kawg. Cov khoom siv kho qhov muag kawg tuaj yeem kho tau zoo thiab hloov cov teeb liab electro-optical, yog li hloov cov teeb liab hluav taws xob mus rau qhov teeb meem kho qhov muag nqa los ntawm fiber ntau optical. Qhov kev txais kho qhov muag kawg ua rau rov qab hloov dua siab tshiab thiab tseem tuaj yeem demodulate lub teeb liab hluav taws xob.Qhov kev txais kho qhov muag kawg thiab qhov kho qhov muag xa mus kawg yog kev cob cog rua los ntawm ib tug connector rau ib tug optical cable kom paub txog kev sib kis, kis tau tus mob, txais tos thiab tso saib cov ntaub ntawv.
Hais txog high-end manufacturing khoom cia siab rau imports
Feem ntau siv optical fibers yog cov txheej txheem ib leeg-hom optical fibers. Nyob rau hauv txoj kev xav, cov ntaub ntawv kis ceev ntawm ib chav tsev lub sij hawm yog hais txog 140 Tbit / s. Yog tias qhov ceev ntawm kev xa cov ntaub ntawv mus txog qhov txwv no, nws yuav ua rau cov ntaub ntawv congestion. Ib hom fiber ntau feem ntau yog fiber ntau uas tuaj yeem kis tau ib hom nkaus xwb.
Tam sim no, tus qauv ib hom kev sib txuas lus kho qhov muag fiber ntau yog ib txoj kev sib txuas lus uas siv los ntawm cov neeg ua haujlwm. Lub peev xwm kis tau tus mob ntawm hom no yog 16 Tbit / s, uas tseem tsis tau mus txog qhov kev txwv theoretical tus nqi. "Cov ntaub ntawv tshiab ntawm 1.06Pbit / s, uas tau luam tawm thaum pib ntawm lub xyoo no, yog qhov tshwm sim ntawm kev ua tiav hauv ib hom kev sib txuas lus fiber ntau-optic technology, tab sis qhov nrawm no nyuaj rau kev ua tiav hauv kev lag luam siv nyob rau lub sijhawm luv luv. sijhawm." He Zhixue hais tias.
Technically, piv nrog ib leeg-hom, multi-core fiber ntau kis tau tus mob hom muaj qhov zoo dua hauv kev ua tiav kev kub ceev, tab sis hom no tseem nyob rau hauv pem hauv ntej, thiab kev xav tau ntxiv rau hauv cov thev naus laus zis, cov khoom tseem ceeb, thiab cov khoom siv kho vajtse. .
Tom qab 5 mus rau 10 xyoo, nyob rau hauv lub impetus ntawm daim ntawv thov yuav tsum tau, cov technologies tseem ceeb ntawm 1.06Pbit / s ultra-loj muaj peev xwm ib leeg-hom multi-core optical fiber kis tau tus mob tej zaum yuav xub siv rau tej yam tshwj xeeb scenarios, xws li transoceanic kis tau tus mob thiab ib co. loj-scale Data center." He Zhixue hais tias.
Tam sim no, Tuam Tshoj txoj kev sib txuas lus kho qhov muag tuaj yeem sib tw nrog cov qib siab thoob ntiaj teb, tab sis tseem ntsib ntau yam teeb meem. Piv txwv li, lub hauv paus kev lag luam cuam tshuam tsis muaj zog, tsis muaj originality thiab autonomy technology, thiab cov khoom siv fiber ntau tsis txaus. "Tam sim no, cov khoom siv high-end xav tau los tsim cov ntaub ntawv fiber ntau xws li kos duab thiab fiber ntau winding yog nyob ntawm kev xa khoom." He Zhixue hais tias.
Nyob rau tib lub sijhawm, cov cuab yeej siv siab kawg thiab cov chips ntsig txog kev sib txuas lus fiber ntau yog tswj hwm los ntawm cov teb chaws tsim kho xws li Tebchaws Meskas thiab Nyij Pooj.
Hauv qhov no, He Zhixue tau hais tias nws yog qhov tsim nyog los ntxiv dag zog rau qhov tseem ceeb ntawm kev tshawb fawb theoretical, ua txoj haujlwm zoo ntawm cov txheej txheem mus sij hawm ntev ntawm cov thev naus laus zis, kwv yees txoj kev loj hlob ntawm kev siv thev naus laus zis, thiab dhia tawm ntawm lub voj voog kev ua haujlwm ntawm "kev taug qab. -lag-re-tracking-thiab rov qab."
Tsis tas li ntawd, He Zhixue tau hais ntxiv tias yuav tsum tau nce peev hauv kev tshawb fawb thiab kev tsim kho, tsim thiab ua cov khoom siv high-end chips thiab high-end, txhawb kev txaus siab ntawm R & D txuj ci, thiab tsom mus rau kev tiv thaiv thawj qhov ua tiav. "Tshwj xeeb tshaj yog, peb yuav tsum ua tus qauv tsim sab saum toj, ua kom muaj kev sib koom ua ke thiab kev tsim kho tshiab hauv cov neeg ua haujlwm, kev tsim vaj tsev, thiab cov cai, thiab txhim kho cov peev txheej txhawb nqa ntawm cov kev lag luam sib xws," nws hais.