EDFA Daim Ntawv Thov: Booster, Hauv -Line thiab Pre-Amp Deployment Guide

 

Pib nrog qhov teeb meem Span, Tsis yog Amplifier Lub Npe

 

Qhov kev txiav txim siab EDFA txhim khu kev qha pib los ntawm qhov poob qis, tsis yog los ntawm daim ntawv lo amplifier. Ib txoj kev 100 km ib zaug - hom txoj kev nyob ib ncig ntawm 0.2 dB / km twb siv li 20 dB ua ntej connector poob, thaj panels, MUX/DEMUX insertion poob, dispersion them nyiaj, aging margin thiab kho margin ntxiv. Hauv kev xyaum, ib zaug tag nrho cov phiaj xwm poob mus rau 25–30 dB, peb ib txwm tso tseg tsis kho EDFA raws li kev xaiv khoom siv thiab pib tshuaj xyuas seb puas muaj zog, hauv - kab lossis ua ntej - amplifier qhov chaw xav tau.

 

Ib qho EDFA yog qhov txaus nyiam vim nws txhawb nqa lub teeb liab optical amplification yam tsis muaj OEO regeneration. Hloov chaw hloov txhua lub wavelength mus rau hauv lub teeb liab hluav taws xob thiab rov qab dua, ib lub tshuab hluav taws xob kho qhov muag tuaj yeem tsa tau tag nrho C-band channel pab pawg, uas yog vim li cas EDFA daim ntawv thov tau los ua lub hauv paus rau WDM thiab DWDM thauj.

 

Tab sis qhov kev txiav txim siab no tsuas yog tuav thaum lub teeb liab thawj tseem muaj OSNR siv tau. Ib qho EDFA tsis txhim kho kev sib cais, cov khoom siv qias neeg, kev tsim hluav taws xob tsis zoo, kev sib npaug ntawm cov channel tsis zoo lossis cov neeg txais tsis sib haum. Nws muab qhov txuas ntxiv lub zog kho qhov muag thiab hloov OSNR profile. Txawm hais tias qhov ntawd pab lossis mob yog nyob ntawm qhov chaw uas lub amplifier tau teeb tsa thiab kaw lub kaw lus li cas rau lub suab nrov hauv pem teb.

 

Peb txoj haujlwm tseem ceeb yog qhov tseeb: rau B2B DWDM qhov chaw, "kev nce siab" tsis tau zoo dua. Ib qho raug muab tso rau 17-23 dB EDFA nrog kev tswj cov zis hluav taws xob thiab lub suab nrov tsim nyog feem ntau muaj txiaj ntsig ntau dua li lub tshuab hluav taws xob loj loj uas thawb qhov txuas mus rau qhov tsis sib xws, nce qaij lossis muaj kev nyab xeeb.

 

Booster, Hauv -Kab lossis Pre-Amp: Kev xa tawm Logic

 

Daim ntawv qhia EDFA yooj yim tshaj plaws muaj peb txoj haujlwm, tab sis txhua tus daws qhov teeb meem sib txawv. Kev kho lawv raws li kev hloov pauv tau yog ib qho yuam kev nyob rau hauv ntev -span DWDM kev npaj.

 

EDFA txoj haujlwm	Qhov twg nws zaum	Txoj hauj lwm tseem ceeb	Yam tseem ceeb	Feem ntau yuam kev
Booster EDFA	Tom qab transmitter, transponder, MUX lossis hloov cov zis	Txhawb nqa lub zog rau hauv lub fiber ntau	High tso zis zog, ruaj khov nce, flatness hla raws	Siv lub zog tso tawm ntau dhau thiab tsim cov kev nplua uas tsis yog kab
Hauv - kab EDFA	Nruab nrab ntawm ob fiber ntau spans los yog ntawm qhov chaw nruab nrab	Compensates span poob ua ntej lub teeb liab ntog ze rau lub suab nrov hauv pem teb	Sib npaug nce, tsis tshua muaj suab nrov daim duab, saib tej thaj chaw deb	Muab nws lig dhau lawm, ces amplifying suab nrov nrog lub teeb liab tsis muaj zog
Ua ntej- amplifier EDFA	Ua ntej receiver, DEMUX los yog coherent receiver input	Nqa cov cim tsis muaj zog ua ntej nrhiav pom	Tsis tshua muaj suab nrov daim duab, receiver rhiab heev kev them nyiaj yug	Cia siab tias yuav ua ntej -amp los kho OSNR tsis zoo uas twb ploj mus lawm

 

Ib qho tshuaj EDFA feem ntau yog siv thaum lub transmitter - sab teeb liab twb poob lub zog los ntawm cov khoom siv passive. Hauv DWDM system, MUX ib leeg tuaj yeem haus ntau dB, thiab cov pab pawg sib koom ua ke yuav tsum nkag mus rau fiber ntau nrog lub zog txaus kom muaj sia nyob thawj zaug. Ib qho kev txhawb nqa EDFA rau DWDM feem ntau xav tau lub zog tso zis siab thiab ua kom zoo dua qub, thaum lub suab nrov ultra-tsis tshua muaj teeb meem tsawg dua hauv qhov tau txais- sab amplifier vim tias cov teeb liab tawm tswv yim tseem muaj zog.

 

Ib qho hauv - kab EDFA yog siv thaum txoj kev poob dhau rau qhov kawg -point amplification ib leeg. Raws li txoj cai lij choj, 80-100 km spans feem ntau xav tau ib qho hauv - kab kos, thiab qhov pib txav ua ntej yog tias MUX / DEMUX ntxig poob, OADM dhau- dhau los ntawm kev poob, kev suav suav lossis cov qub patching twb tau noj 5 dB lossis ntau dua ua ntej fiber ntau attenuation yog suav tag nrho. Lub ntsiab lus tseem ceeb tseem xav tau daim ntawv qhia txuas, tab sis qhov kev txiav txim siab tsis zoo yuav tsum tsis yog "nws nyob." Nws yuav tsum yog: xam nyob rau hauv -kab qhov chaw ua ntej lub teeb liab ntog ze rau lub suab nrov hauv pem teb.

 

Ib qho ua ntej- amplifier EDFA zaum ze ntawm qhov tau txais thiab raug xaiv rau lub suab qis. Nws txoj hauj lwm tsis yog "ua kom txhua yam muaj zog." Nws txoj hauj lwm yog nqa qhov tsis muaj zog tab sis tseem siv tau cov teeb liab kho qhov muag ua ntej tau txais kev pom. Qhov no yog vim li cas 980 nm twj tso kua mis feem ntau nyiam nyob rau hauv qis - suab nrov EDFA tsim. RP Photonics sau tseg tias EDFAs feem ntau siv lub twj tso kua mis wavelengths nyob ib ncig ntawm 980 nm thiab 1480 nm, nrog 980 nm siv feem ntau cuam tshuam nrog qis- suab nrov ua haujlwm hauv pre- amplifier designs (RP Photonics).

 

 

Qhov kev txiav txim tuaj yeem thim rov qab hauv cov rooj plaub ntug. Yog hais tias txoj kev 80 km poob feem ntau ntawm nws cov npoo ntawm lub transmitter sab vim yog passive MUX, lub koob tuaj yeem daws qhov teeb meem tseem ceeb ntawm pob nyiaj siv. Yog tias tib txoj kev tuaj txog tsis muaj zog tom qab DEMUX poob, lub pre-amp tej zaum yuav muaj teeb meem ntau dua. Yog tias tag nrho qhov kev poob qis dhau mus dhau li ntawm 25-30 dB, kev cia siab tsuas yog nyob deb -kawg ua ntej-amp feem ntau lig dhau lawm vim OSNR tej zaum yuav raug puas ntsoog ntws. Tias yog vim li cas peb thiaj li thov kom tag nrho fiber ntau poob, passive poob thiab txais qhov pib ua ntej pom zoo kom muaj lub zog, hauv - kab EDFA lossis ua ntej - amplifier EDFA.

 

Rau kev sib piv sib sib zog nqus ntawm EDFA, SOA thiab Raman tus cwj pwm nyob rau hauv ntau qhov kev txwv, koj tuaj yeem tshuaj xyuas pebEDFA, SOA thiab Raman optical amplifier sib piv.

 

EDFA Applications los ntawm Real Network Scenario

 

EDFA daim ntawv thov zoo sib txawv nyob rau hauv lub submarine qaum qaum, ib tug metro DWDM nplhaib, CATV faib network thiab 5G backhaul txoj kev. Lub hauv paus ntsiab lus amplifier zoo ib yam, tab sis qhov kev pheej hmoo ntawm kev xa tawm tsis yog.

 

Submarine EDFA rau Ntev -Haul DWDM Txuas

 

Hauv submarine thiab ntev -haul systems, tus lej nyuaj tseem ceeb. Rov ua dua cov qauv hauv qab dej hiav txwv tuaj yeem ntsuas qhov ntsuas qhov pom ntawm ib ncig ntawm 50-100 km ncua sij hawm, tab sis qhov sib nrug ntawm qhov tseeb nyob ntawm qhov tsis muaj fiber ntau, lub hom phiaj muaj peev xwm, txwv tsis pub noj fais fab, rov tsim dua thiab cov kab ke. ITU-T submarine cable tsim kev taw qhia kuj tseem tham txog cov twj tso kua mis tsis tu ncua- laser configurations thiab 25- xyoo kev cia siab rau lub neej rau kev rov qab ua haujlwm submarine, uas yog vim li cas submarine EDFA kev txiav txim siab tsawg dua txog qhov yooj yim nce thiab ntau ntxiv txog kev cia siab rau lub neej ntev (ITU-T G.Suppl.41).

 

Rau thaj av ntev -txoj kev txuas, qhov chaw nruab nrab ntawm lub tshuab hluav taws xob tau yooj yim nkag mus tau yooj yim, tab sis qhov sib txawv tseem txwv los ntawm cov tsev pheeb suab, lub zog, txoj cai fiber ntau thiab kev tiv thaiv tsim. Txoj cai tseem ceeb yog qhov no: ntev - thauj EDFA kev npaj yuav tsum tiv thaiv OSNR ua ntej nws tawg, tsis yog tom qab. Yog hais tias lub amplifier ntxiv tsuas yog tom qab lub teeb liab dhau los ua tsis muaj zog, nws nce ob lub teeb liab thiab suab nrov. Tias yog vim li cas hauv - kab EDFA qhov chaw yog qhov txuas - tsim kev txiav txim siab, tsis yog kev yuav khoom tom qab.

 

Metro EDFA rau DWDM Rings thiab Regional Networks

 

Lub nplhaib 40 km metro DWDM tseem yuav xav tau kev nthuav dav yog tias cov khoom siv tsis zoo noj cov peev nyiaj ua ntej cov fiber ntau. ROADMs, OADMs, thaj vaj huam sib luag, MUX / DEMUX modules thiab cov laus txuas tuaj yeem haus cov npoo txaus uas nyob ib leeg dhau los ua qhov qhia tsis tseeb.

 

Qhov no yog qhov uas ntau daim ntawv thov metro EDFA tau hloov maj mam. Hauv qhov chaw huv huv - mus rau - taw tes ncua, EDFA kev txiav txim siab yuav zoo li yooj yim. Nyob rau hauv ib lub nplhaib nrog ntxiv / poob nodes thiab kev tiv thaiv kev hloov pauv, channel loading hloov ntau zaus, thiab lub amplifier yuav tsum nyob twj ywm thaum lub wavelengths ntxiv, tshem tawm los yog rerouted.

 

EDFA rau DCI thiab 40–120 km Campus Links

 

DCI tej yaam num feem ntau yog saib xyuas txog kev xa tawm, kev sib cog lus, kev xa sai thiab kev sib raug zoo nrog 100G, 200G, 400G lossis siab dua - tus nqi optics. Rau 40–120 km DCI los yog tsev kawm ntawv - mus rau - kev thauj mus los hauv tsev kawm ntawv, ib daim ntawv thov EDFA ib txwm yog txhawm rau txuas cov peev nyiaj txuas hluav taws xob ntawm DWDM lossis OTN system yam tsis muaj kev tsim kho tag nrho.

 

CATV EDFA Amplifier Deployment

 

Lub CATV EDFA amplifier feem ntau raug txiav txim ua ntej los ntawm cov zis hluav taws xob, tab sis qhov tsis ua haujlwm feem ntau yog qhov txuas, tsis yog lub tshuab hluav taws xob chassis. Siab -faiv fab downstream faib yuav pub ntau qhov kho qhov muag ntawm ib lub taub hau, yog li cov zis ib qhov chaw nres nkoj, qhov chaw nres nkoj sib npaug, kev sib txuas tu thiab kev tswj xyuas qhov teeb meem ntau npaum li tag nrho dBm.

 

CATV EDFA yuav tsum raug soj ntsuam rau cov zis hluav taws xob, suav chaw nres nkoj, tiaj tus, cov cab kuj-rau- suab nrov cuam tshuam, thiab kev ruaj ntseg thoob plaws qhov kev ua haujlwm wavelength. Qhov kev xaiv tsis yog tsuas yog tsom rau tag nrho cov zis hluav taws xob thaum tsis quav ntsej rau ib -chaw nres nkoj sib npaug thiab kev huv ntawm cov khoom sib txuas.

 

5G Backhaul EDFA rau Access Aggregation

 

Hauv 5G backhaul, qhov kev xav tsis zoo yuav tsum tsis yog "siv lub zog tshaj plaws." Kev poob feem ntau yog tsom mus rau qhov kev faib tawm tsis zoo, txee patching thiab receiver- sab nkag mus sib sau ua ke, yog li compact pre-amplifier EDFA los yog nruab nrab booster EDFA qhov tso kawm feem ntau ua tau zoo dua li qhov siab - lub zog hluav taws xob thawb rau hauv txhua txoj hauv kev.

 

L-Band EDFA rau Kev Txhim Kho Kev Muaj Peev Xwm

 

Thaum C-band system mus txog nws lub peev xwm channel, cov neeg ua haujlwm yuav ntsuas L-band expansion lossis hybrid amplification designs. EDFA tuaj yeem txhawb nqa C-band thiab L-band variants, tab sis qhov nce profile, suab nrov tus cwj pwm thiab tsim lub suab nrov tsis zoo ib yam.

 

Lub Pitfalls tsis muaj leej twg muab tso rau hauv cov ntaub ntawv

 

Siab -Lub zog EDFA kev xa tawm muaj kev nyab xeeb thiab kev ntseeg siab uas ntau nplooj ntawv khoom hla. Qhov no tsis yog kev ceev faj nkaus xwb. Nws cuam tshuam rau lub neej txuas, kev saib xyuas thaj chaw, kev pabcuam ruaj khov thiab kev tiv thaiv cov khoom siv.

 

 

Thawj qhov kev pheej hmoo yog fiber ntau fuse. RP Photonics piav qhia txog fiber ntau fuse raws li kev puas tsuaj uas cov ntshav plasma kub propagates rov qab los ntawm cov tub ntxhais fiber ntau thiab tuaj yeem tshwm sim hauv tus qauv ib zaug - hom fiber ntau ntawm cov qib qis qis, qee zaum qis dua 1 W. Nws kuj tseem sau tseg tias siab - lub zog fiber ntau amplifiers tshwj xeeb yog muaj kev pheej hmoo thiab xav tau kev ntsuas tsim nyog (RP Photonics).

 

Qhov kev pheej hmoo thib ob yog connector kawg -fim paug. MicroCare piav qhia tias siab - lub zog lasers tuaj yeem ua rau cov fiber ntau puas thaum muaj kab mob ntawm lub ntsej muag fiber ntau absorbs lub zog kho qhov muag, hloov mus rau hauv tshav kub, thiab ua rau lub khob puas; Nws kuj tseem sau tseg tias kev puas tsuaj tuaj yeem hla dhau qhov chaw txuas mus rau hauv fiber ntau (MicroCare).

 

Yuav Ua Li Cas Spec thiab Tau Txais Txoj Cai EDFA

 

Ib qho zoo erbium-doped fiber amplifier specification yuav tsum tau sau los ntawm qhov txuas rov qab. Pib nrog lub hom phiaj span, passive poob, fiber ntau hom, channel txoj kev npaj, transceiver hom, receiver pib thiab OSNR yuav tsum tau. Ces txhais lub amplifier txoj hauj lwm.

 

Specification yam khoom	Vim li cas nws tseem ceeb hauv EDFA daim ntawv thov
Kev ua haujlwm band	Paub meej tias C-band, L-band lossis txuas ntxiv -band compatibility nrog cov phiaj xwm channel
Tau ntau yam	Txiav txim siab seb lub amplifier puas tuaj yeem them qhov kev sib txuas tiag tiag yam tsis muaj kev tsav tsheb ntau dhau
Tso zis zog	Ib qho tseem ceeb rau kev txhawb nqa thiab CATV kev faib tawm, tab sis yuav tsum sib npaug tiv thaiv tsis muaj kab thiab kev nyab xeeb
Nrov duab	Tseem ceeb heev rau ua ntej-amps, hauv- qhov chaw kab thiab ntev -haul OSNR preservation
Tau txais flatness	Tiv thaiv wavelength imbalance nyob rau hauv ntau -channel DWDM systems
Input zog ntau yam	Xyuas kom ruaj khov ua haujlwm raws li qhov tseeb channel loading
Tswj hom	AGC, APC lossis lwm hom kev cuam tshuam cuam tshuam cov kev hloov pauv nyob thiab tus cwj pwm tsis zoo
Kev nyab xeeb muaj nuj nqi	Lub twj tso kua mis kaw, ceeb toom thiab txo hwj chim tiv thaiv tib neeg, cov khoom txuas thiab khoom siv
Management interface	SNMP, lub vev xaib, serial lossis lwm qhov sib cuam tshuam pab pawg NOC saib xyuas kev noj qab haus huv amplifier
Environmental tsim	Kev ua kom txias, lub zog rov ua dua thiab lub tswb ntsuas kub cuam tshuam rau lub sijhawm ntev - ruaj khov

 

Rau B2B kev yuav khoom, tus chij liab tsis yog tus nqi qis ntawm nws tus kheej. Tus chij liab yog tus neeg muag khoom uas tsis tuaj yeem piav qhia vim li cas EDFA yuav tsum yog lub zog, hauv - kab tsev lossis ua ntej - amplifier rau koj txoj hauv kev. Yog tias cov lus teb tsuas yog "siab dua cov zis hluav taws xob muaj kev nyab xeeb dua," cov lus pom zoo tsis tau npaj rau kev pom zoo.

 

FB-LINK tau tsim kho qhov muag modules txij li xyoo 2008 thiab txhawb nqa DWDM, DCI thiab ntev - ncua kev kho qhov muag nrog 1600㎡ huv chaw tsim khoom, 200+ cov neeg ua haujlwm, ROHS- cov txheej txheem ua raws thiab kev ua haujlwm rau 180+ cov neeg siv khoom. Hauv EDFA qhov chaw, qhov tseem ceeb ntawm keeb kwm yav dhau tsis yog lub tuam txhab loj ib leeg; nws yog lub peev xwm los tshuaj xyuas qhov kho qhov muag modules, MUX / DEMUX poob, DCI / OTN ncua lub hom phiaj thiab amplifier tso rau hauv ua ke es tsis hais txhua yam hauv kev sib cais.

 

Yog tias koj tab tom npaj 80 km, 120 km lossis kev cai DWDM ncua, xa cov fiber ntau poob, MUX / DEMUX poob, wavelength suav thiab hom transceiver. Peb tuaj yeem pab txhawb kev sib tw, hauv - kab lossis ua ntej - amplifier configurations los ntawm pebEDFA optical amplifier khoom ntau yamyog li chav tsev tsis loj, nyob rau hauv - tau qhia lossis muab tso rau qhov twg nws tsis tuaj yeem tiv thaiv OSNR.

 

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