Hnub no,optical fiber ntau cablecov tes hauj lwm tau nthuav dav thoob plaws ntiaj teb, thiab kev sib txuas lus kho qhov muag fiber ntau tau dhau los ua tus ncej tseem ceeb ntawm "txoj kev xov xwm loj". Txawm li cas los xij, vim tias qhov kev sib kis tsis tau ntawm cov fiber ntau optical nws tus kheej, lub teeb liab kho qhov muag tsuas yog kis tau tsis deb dhau, thiab nws yuav raug txo qis rau qhov uas tus txais tsis tuaj yeem paub qhov txawv. Yav dhau los, optical relay siv "optical-electric-optical" txoj kev rau optical amplification. Lub kiv puag ncig hauv kev sib txuas lus kho qhov muag tau tshwm sim los ntawm qhov tshwm sim ntawm EDFA ua lub luag haujlwm tseem ceeb hauv kev xa xov thiab kev sib txuas lus, cable TV thiab computer network systems uas siv fiber ntau optical ua qhov nruab nrab kis.
Kev faib tawm ntawmEDFAerbium-doped fiber ntau amplifier:
1. Fais fab amplifier (booster-Amplifier), tom qab multiplexer, yog siv los txhawb lub zog ntawm ntau lub wavelength signals tom qab multiplexing, thiab tom qab ntawd xa mus, vim hais tias lub zog teeb liab tom qab multiplexing feem ntau kuj loj,
Yog li ntawd, lub suab nrov thiab nce yuav tsum tau ntawm lub hwj chim amplifier tsis siab heev, tab sis nws yuav tsum muaj ib tug kuj loj tso zis hwj chim tom qab amplification.
2. Kab-Amplifier (Line-Amplifier), tom qab lub hwj chim amplifier, yog siv los them nyiaj rau cov kab sib kis tsis tu ncua. Feem ntau, lub suab nrov me me thiab qhov tso zis ntau qhov hluav taws xob yog xav tau.
3. Lub pre-amplifier (Pre-Amplifier), nyob rau hauv ua ntej lub demultiplexer thiab tom qab kab amplifier, yog siv rau cov teeb liab amplification los txhim kho qhov rhiab heev ntawm lub receiver (thaum lub optical signal-to-noise ratio (OSNR) ua tau raws li qhov yuav tsum tau muaj. , lub zog input loj Nws tuaj yeem cuam tshuam lub suab nrov ntawm lub receiver nws tus kheej thiab txhim kho qhov tau txais rhiab heev), lub suab nrov yuav tsum muaj me me, thiab tsis tas yuav tsum muaj ntau lub zog tso zis.
Kev hloov pauv hloov pauv hauv thaj chaw ntawm kev sib txuas lus kho qhov muag fiber ntau, nws ua rau qhov ntev-ntev, muaj peev xwm loj, thiab kev sib txuas lus fiber ntau ceev tau. Nws yog ib qho tseem ceeb ntawm cov cuab yeej tseem ceeb rau DWDM systems, yav tom ntej high-speed systems, thiab tag nrho-optical networks. Nws txoj kev tshawb fawb, kev tsim kho thiab kev siv yog qhov tseem ceeb heev rau kev txhim kho kev sib txuas lus fiber ntau.
Lub luag haujlwm tseem ceeb yog txhawm rau them nyiaj rau lub zog ntawm lub teeb liab lub teeb nyob rau hauv qhov sib txuas
