DWDM System Amplifiers
DWDM EDFA yog qhov tseem ceeb hauv DWDM network. Nws siv ib qho kev saib xyuas kev tswj fais fab kev tswj fais fab thiab kev siv fais fab nyiaj txuas rau DWDM kev sib txuas lus ntev.
Nws muaj peb lub hom phom kev pom zoo: fiber ntau amplifiers (EDFAS), semiconductor optical amplifiers (SOAs), thiab Raman amplifiers. Fiber amplifiers siv tsawg lub ntiaj teb cov ntsiab lus feem ntau yog erbium, tab sis kuj oraseodymium, tellurite, neodymium, thiab lwm tus neeg raws li dopant uas yog pumped nrog ib tug laser ntawm 980 mus 1480nm. Qhov khoom plig tshaj plaws rau WDM network yog EDFAs.
Hom tshuaj EDFAs siv rau DWDM
1 Erbium-doped fiber ntau amplifiers-EDFA. Lawv yog cov tsawg nosie lub cev kwv yees li ntawm 5dB thiab cov kabmob thoob plaws kev ua haujlwm bandwidth. Lub EDFA pumped ntawm 980nm 0r 1480 nm.
2 Erbium-doped fluoride fluoride fiber ntau amplifiers (EDFFA) muab rau kev ntxim siab nce spectrum yam tsis muaj nce flattening uas ua rau kev poob. Lawv tuaj yeem nqus tau cov xim ntau dua li ntawm silica ua kom ncaj
qhab hla txoj kev siv txoj kev xa mus, qhov 1530 nm mus rau 1542 thaj tsam yuav raug siv rau DWDM. SNR tseem nyob zoo li qub, los yog ze li ntawm tib yam rau txhua txoj hauv kev. Howerver, fluoride EDFAs muaj suab ntau dua los ntawm kev pumped ntawm 1480nm. DWDM channels yuav tsum muaj qhov nce nce los ntawm kev siv lub zog rau kev ua haujlwm zoo. Lawv tau pov thawj ruaj ruaj nrog kev ruaj ntseg ntawm qhov ntev tshaj li 0.02 nm ib xyoos.
Nyob hauv DWDM qhov system amplifiers yog ib qho kev tivthaiv kev ua haujlwm. Rau 32 channel DWDM systems optical amplifiers yuav tsum tau muab tsawg kawg 25nm ntawm usable bandwidth. 80 Gbt / s nrog 10 Gbt / s channels xav tau 8 wavelengths; 2.5 Gbt / s channels xav tau 32 wavelengths. Cov no yuav tsum muaj lub hwj chim outout siab thiab qis qis thiab lub teeb liab kom nrov nrov (SNR). Network spans tam sim no ntawm 360km yuav tsum mus cuag 600 km ces mus rau 2000 km nrog EDFAs. Nrog optical amplifiers lub teeb liab qhov muag tsis tas yuav tsum tau hloov dua siab tshiab thiab muaj zog ua kom pom tseeb nyob rau hauv dhau los ntawm tus neeg ua haujlwm. Optical fiber ntau zog ua kom muaj kev tawm tswv yim zoo dua qub dua qub thiab kev xa xov tuaj yeem ua rau ncua kev ncua. Qhov no yuav siv qhov chaw ntawm tus SONET regenerator.
PS: 600 km ncua sij hawm nrog DWDM tsuas yog siv 4 optical amplifiers dhau ntawm fiber ntau tus khub
Muaj peb hom yog optical amplifiers siv hauv DWDM system. Cov no yog:
1 Cov ncej thoj ntim tau muab tso rau tam sim ntawd tom qab lub tshuab xa tawm mus nce qhov muag fais fab rau lub receiver.
2 In-line amplifiers txhawb lub zog theem tom qab kis los ntawm qhov ntev ntawm fiber ntau tso lub teeb liab kom dhau los ntawm lwm lub tshuab fiber ntau. Lawv raug siv los them rau cov teebmeem ntawm lub plhu hauv qhov ntev ntawm fiber ntau.
3 Pre-amplifiers txhawb zog ntawm lub teeb liab ua ntej tus neeg tuaj yeem txais.
FOCC tuaj yeem muab DWDM EDFA amplifiers hauv ntau txoj hauv kev los ntawm 40 ~ 80 raws. Cov amplifiers muaj siab kho qhov muag siab, qis suab nrov thiab siab saturation optical zog uas muaj siab nrog ntau hom DWDM system.
Cov khoom no yog spectrum ca EDFA rau DWDM system. Lub zog Twj Laser thiab cim ATC (tsis siv neeg lub peev xwm tswj) thiab APC (tsis siv neeg lub hwj huam tswj) Circuit Court yog ua haujlwm rau lub ntsiab lus tseem ceeb kom muaj kev ruaj siab ruaj khov thiab kev cia siab ntawm cov zis lub zog. Kev ruaj siab thiab kev kub siab ntawm MPU yog ua hauj lwm kom muaj kev tswj kom haum thiab kev pom muaj kev txawj ntse thiab yooj yim. Kev tsim cov qauv GFF (nce flattening lim) nrog kev kho zoo heev tsim tsim tsim kom zoo thiab ua suab nrov txog qhov zoo tshaj plaws. Nws tuaj yeem muab 40 ~ 80 raws, thiab tshaj 35nm pav.
Tus kho qhov muag pom zoo tsim tshwj xeeb rau kev kho qhov muag fiber ntau nrog rau
(1) lub suab qis dua;
(2) high output output thiab high sensitivity Pre-Amplifier txhawm rau txhim kho pob nyiaj siv;
(3) Broad input fais fab ntau zog thiab tso zis zog adjustable ua nws siv tau yooj yim.
Tus qauv siv ntawm Cov Hwj Huam Daus Taub thiab kub sib pauv kom nws ntev dua MTBF. Kuj, qhov fais fab tuag tuaj yeem ua haujlwm tau zoo dua.Yog kev ua haujlwm kub siab, tus kiv cua yog nyob rau thaum lub ntsuas sov tshaj 45 ℃, nws lub sijhawm yuav nres li 40 ℃, nws ua kom lub thermal stability thiab kiv cua lub neej ntev -Kev, lub caij no, qhov kev tsim cov cua ntim tsim kuj ua kom muaj qhov zoo tshaj qhov kub thiab txias. Txig network interface: Ethernet, RS-485 thiab RS-232 network interface, thiab qhib qhib muaj kev sib txuas nrog txhua qhov kev tswj hwm network.
Daim ntaub ntawv
Tawm Amplifier Online Amplifier
Txiav
DWDM Optical System
Nta
1.Low Noise Figure: Hom 4.5dB Siab Flatness: Hom 1dB
2. Cuam Txhua Kab C-Band: Muaj 40 lossis 80 chs
3.Redundancy kub swap zog module: 110 / 220VAC thiab 48VDC yuav ntsaws Mix
4.Perfect Network Interface: Ethernet, RS-485 thiab RS-232 chaw nres nkoj
5. Txhawb nqa Telnet thiab SNMP network tswj
6.Qhov muaj peev xwm kho tau los ntawm network thiab phau ntawv
7.High Precise AGC thiab ATC Circuit
8.High saturation tso zis zog
9.Xam phiv Mechanics thiab Circuit structure (Module, 1U khib thiab Gain Block)
10. OEM muaj txuam nrog Telecordia GR-1312-CORE
