MRV Communications EM316EDFA-LPR Uživatelský manuál

Page 1 / 40Cédric Ware <[email protected]>2011Document LicenseOptical amplifiers

Page 10 / 40Cédric Ware <[email protected]>2011Document LicensePackagingPumping typeselectrical ⇒ easy integrationoptical ⇒ must

Page 11 / 40Cédric Ware <[email protected]>2011Document LicenseFunctionalities of amplifiersWDM amplificationSimultaneous amplificat

Page 12 / 40Cédric Ware <[email protected]>2011Document LicenseTypical usage configurationsTransmission lineEmitterBooster Preampl

Page 13 / 40Cédric Ware <[email protected]>2011Document LicenseNeeds for different usagesTransmission NetworkBooster In-line Pream

Page 14 / 40Cédric Ware <[email protected]>2011Document LicenseErbium-doped fiber amplifiersCurrently most-used amplifiers: EDFAsEr3

Page 15 / 40Cédric Ware <[email protected]>2011Document LicenseEDFA: gain spectrumPopulation inversionNet gainλ (nm)40%60%1500 15

Page 16 / 40Cédric Ware <[email protected]>2011Document LicenseGain-flattening filtersGain-flattening filters → gain equalizationwww.

Page 17 / 40Cédric Ware <[email protected]>2011Document LicenseEDFA: pumpingSingle-mode fiber required for the signal⇒ low numeric

Page 18 / 40Cédric Ware <[email protected]>2011Document LicenseEDFA characteristicsC- or L-bandAll-fiber ⇒ low insertion lossGain

Page 19 / 40Cédric Ware <[email protected]>2011Document LicenseModern EDFAsUsage: all applications on C + L bandsDynamic gain equ

Page 2 / 40Cédric Ware <[email protected]>2011Document LicenseIntroductionHigh-speed wired communications: optical fibersPrimary l

Page 20 / 40Cédric Ware <[email protected]>2011Document LicenseEDFA packagingFDDatasheetMedia ConvertersRepeaters and Optimizerss

Page 21 / 40Cédric Ware <[email protected]>2011Document LicenseOther doped-glass amplifiersSame principle as EDFAs:EDWA: doped wav

Page 22 / 40Cédric Ware <[email protected]>2011Document LicenseSemiconductor optical amplifiersSOA = semiconductor laser without c

Page 23 / 40Cédric Ware <[email protected]>2011Document LicenseSOA packagingSOA module:chip mounted on basebias current 200 mA –

Page 24 / 40Cédric Ware <[email protected]>2011Document LicenseSOA characteristicsGain determined by energy band structureValence

Page 25 / 40Cédric Ware <[email protected]>2011Document LicenseBulk SOAsBulk / quantum-well (QW) SOAs:Mature technology, same wav

Page 26 / 40Cédric Ware <[email protected]>2011Document LicenseQuantum-dot SOAsQuantum-dot (QD) SOAs:G ∼ 10–25 dB, BW ∼ 100 nm, τ

Page 27 / 40Cédric Ware <[email protected]>2011Document LicenseSOAs: poor amplifiersHistorically, SOA problems:SOA fast (∼ 1 ns) ⇒

Page 28 / 40Cédric Ware <[email protected]>2011Document LicenseSOAs: comebackCurrently, SOAs making a comeback:Long-distance tran

Page 29 / 40Cédric Ware <[email protected]>2011Document LicenseSOA improvementsQuantum-dot SOAs:Very wide bandwidthUltrafast elec

Page 3 / 40Cédric Ware <[email protected]>2011Document LicenseIntroductionAvoid signal regenerators (O-E-O bulky; all-optical not

Page 30 / 40Cédric Ware <[email protected]>2011Document LicenseNew SOA usages“Novel functionalities” of the 1990s (nonlinear effec

Page 31 / 40Cédric Ware <[email protected]>2011Document LicenseNonlinear effects (for amplification)Several-photon interactionsInte

Page 32 / 40Cédric Ware <[email protected]>2011Document LicensePhonon typesAcoustic phonons: lattice vibrations, low frequencies→

Page 33 / 40Cédric Ware <[email protected]>2011Document LicenseBrillouin scatteringPhase matching: kphonon∝ ωphononthus, for sign

Page 34 / 40Cédric Ware <[email protected]>2011Document LicenseRaman amplificationRaman-effect fiber amplifier (RFA): same setup as E

Page 35 / 40Cédric Ware <[email protected]>2011Document LicensePum configurationPhase matching: kphononmay be large or small compa

Page 36 / 40Cédric Ware <[email protected]>2011Document LicenseRaman amplifier = distributed amplificationLocalized amplifiers: betw

Page 37 / 40Cédric Ware <[email protected]>2011Document LicensePros/cons of Raman amplificationPros:Works at any λDistributed ampl

Page 38 / 40Cédric Ware <[email protected]>2011Document LicenseHybrid Raman–EDFA amplificationPump ∼ 1460–1480 nm, standard + dope

Page 39 / 40Cédric Ware <[email protected]>2011Document LicenseAmplifiers vs applicationsCurrent usages:EDFAs mature → all telecom

Page 4 / 40Cédric Ware <[email protected]>2011Document LicenseOptical amplificationOptical amplification based on stimulated emissi

Page 40 / 40Cédric Ware <[email protected]>2011Document LicenseReferences, further readingE. Desurvire, “Erbium-Doped Fiber Ampli

Page 41 / 40Cédric Ware <[email protected]>2011Document LicenseDocument LicenseAcademic context } without modificationBy downloadi

Page 5 / 40Cédric Ware <[email protected]>2011Document LicenseParameters of an amplifierFundamental parameters:λ, bandwidthGain, s

Page 6 / 40Cédric Ware <[email protected]>2011Document LicenseGain and saturationGain:Pout= GPinPin(G − 1) < PpumpPinGPoutPpum

Page 7 / 40Cédric Ware <[email protected]>2011Document LicenseAmplification noiseAmplifiers add noise (else violate uncertainty pri

Page 8 / 40Cédric Ware <[email protected]>2011Document LicenseNoise from a chain of amplifiersAmplifier chain: the first amplifier’s

Page 9 / 40Cédric Ware <[email protected]>2011Document LicenseSignal distortionsDispersion (chromatic and polarization) in long a