Optical amplifiers: "Cov chaw muab hluav taws xob" ntawm cov ntaub ntawv xov xwm superhighway, ua kom cov teeb liab kho qhov muag mus tsis tau poob.
Nyob rau hauv lub era ntawm surging digital tides, loj npaum li cas ntawm cov ntaub ntawv kis tau tus mob ceev ntawm lub teeb los ntawm fiber optic tes hauj lwm. Txawm li cas los xij, raws li lub teeb pom kev mus deb, lawv maj mam poob qis, zoo li cov neeg ncaws pob uas xav tau ib nrab ntawm - haiv neeg ntxiv. Optical amplifiers yog qhov tseem ceeb ntawm "cov chaw nres tsheb hluav taws xob" ntawm cov ntaub ntawv no superhighway, ua kom lub teeb ci ntsa iab mus txog ntau txhiab mais yam tsis tas yuav tsum "nres thiab hloov chaw".
Ua ntej qhov tshwm sim ntawm optical amplifiers, optical signals yuav tsum tau mus rau ib tug "optoelectronic-electro-} optic" hloov dua siab tshiab thiab regeneration txhua txhua 80 mus rau 100 kilometers ntawm kis. Cov txheej txheem no tau zoo ib yam li yuam lub tsheb ciav hlau siab - ceev ceev kom nquag nres thiab hloov tsheb ciav hlau, tsis yog ua tsis tau zoo xwb tab sis kuj dhau los ua lub hauv paus rau kev nthuav dav ntawm lub network bandwidth. Qhov tshwm sim ntawm optical amplifiers hloov tag nrho cov teeb meem no. Lawv tuaj yeem txuas ncaj qha rau cov teeb liab kho qhov muag yam tsis tas yuav tsum muaj kev hloov pauv ntawm optoelectronic cumbersome. Qhov kev siv thev naus laus zis no tau ua rau qhov kev sib kis ib leeg mus dhia los ntawm pua - mais mus rau ntau txhiab mais, tso lub hauv paus rau kev niaj hnub ntev - nrug, siab - muaj peev xwm kho qhov muag kev sib txuas lus.
Doped fiber amplifiers yog cov hnub qub dazzling tshaj plaws hauv tsev neeg ntawm optical amplifiers. Lawv siv doped fiber ntau raws li qhov nruab nrab nce, zoo kawg nkaus sib piv qhov qis qis qis (C band) ntawm kev sib txuas lus fiber ntau, thiab tuaj yeem ua kom nrov nrov ntawm ntau lub wavelength signals. Cov yam ntxwv no ua rau qhov loj - teev kev lag luam ntawm wavelength division multiplexing thev naus laus zis, ua kom muaj peev xwm sib kis ntawm ib leeg fiber ntau ntau pua zaus. Raman amplifiers txais yuav ib qho kev nthuav dav dav dav, siv cov fiber ntau nws tus kheej ua qhov nruab nrab nce. Los ntawm kev txhaj tshuaj siab - lub zog twj tso kua mis lub teeb rau hauv cov fiber ntau, cov nyhuv Raman tawg tau ua rau kom ua tiav cov teeb liab hauv online. Nws qhov tshwj xeeb zoo nyob hauv lub peev xwm ua kom tau txais txiaj ntsig hauv ib qho kev sib tw wavelength, thiab thaum siv ua ke nrog EDFA, nws tuaj yeem txhim kho lub teeb liab zoo heev - rau - suab nrov piv. Semiconductor optical amplifiers siv cov khoom siv semiconductor ua qhov nruab nrab nce, muaj qhov me me, muaj peev xwm sib koom ua ke, thiab cov lus teb ceev ceev. Lawv ua kom pom tus nqi tshwj xeeb hauv photon kev koom ua ke thiab siab - hloov kho qhov muag ceev.
Nyob rau hauv submarine optical cable system uas txuas ntau lub teb chaws, EDFA module ua haujlwm ntsiag to hauv hiav txwv tob txhua ob peb kaum kilometers, kom ntseeg tau tias tsis muaj kev cuam tshuam ntawm 99% ntawm cov ntaub ntawv thoob ntiaj teb thoob ntiaj teb. Nyob rau hauv lub teb chaws qaum teb kis tau tus mob network, optical amplifiers ua lub luag hauj lwm hnyav ntawm ntev - kis tau tus mob ntawm cov ntaub ntawv loj ntawm sab hnub tuaj thiab sab hnub poob cov ntaub ntawv chaw nyob rau hauv lub "East Data West Computing" project. Hauv kev txhim kho sai ntawm cov ntaub ntawv chaw sib cuam tshuam, cov khoom siv kho qhov muag tau pab kom ua tiav siab -kev sib txuas ncaj qha ntawm cov chaw khaws ntaub ntawv hauv ntau lub nroog. Hauv 5G fronthaul network, miniaturized optical amplifiers lav qhov siab -kev xa xov zoo ntawm lub hauv paus chaw nres tsheb teeb liab. Tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej tsis zoo xws li submarine optical kev sib txuas lus, cov khoom siv kho qhov muag hauv tsev tau dhau los ua pov thawj kev ntseeg tau zoo thiab ua kom pom kev ruaj ntseg ntev ntev, muab kev txhawb zog rau cov ntaub ntawv kev ruaj ntseg hauv teb chaws thiab cov tswv yim marine.
Raws li kev sib kis tus nqi nce mus rau 800G / 1.6T, optical amplifier technology txuas ntxiv mus tsim kho tshiab. Kev txawj ntse kho qhov muag amplifiers sib xyaw ua haujlwm xws li kev saib xyuas lub zog kho qhov muag, tsis siv neeg nce kev hloov pauv, thiab kev twv ua yuam kev, ua rau lawv tuaj yeem hloov mus rau qhov chaw sib koom ua ke. Hybrid amplification technology ua ke nrog qhov zoo ntawm EDFA thiab Raman amplifiers los muab cov kev daws teeb meem zoo tshaj plaws rau ultra-ntev- kis tau tus mob.
Los ntawm lub hiav txwv sib sib zog nqus mus rau qhov siab siab, los ntawm lub caj dab network mus rau lub network nkag mus, lub optical amplifier, uas ua hauj lwm raws li "lub zog replenishment chaw nres tsheb" nyob rau hauv cov ntaub ntawv superhighway, yog tsis tu ncua muab inexhaustible hwj chim rau txhua txhua cov ntaub ntawv ntws nyob rau hauv Digital Tuam Tshoj nrog nws ruaj khov thiab txhim khu kev qha kev ua tau zoo. Nyob rau hauv daim ntaub thaiv ntawm tag nrho - optical network era, nws yuav txuas ntxiv mus ua lub luag haujlwm tseem ceeb thiab pab txhawb rau kev tsim kho cov ntaub ntawv muaj txiaj ntsig thiab ntse dua.