I totonu o le fiber-to-the-home (FTTH) network construction, optical splitters, e avea ma vaega autu o fesoʻotaʻiga opitika passive (PONs), e mafai ai e le tele o tagata faʻaoga fefaʻasoaaʻi o se fiber se tasi e ala i le tufatufaina atu o le eletise, e aʻafia ai le faʻatinoga o fesoʻotaiga ma le poto masani o tagata. O lenei tusiga o loʻo faʻavasegaina faʻatekonolosi autu i fuafuaga a le FTTH mai ni faʻaaliga e fa: filifiliga o tekinolosi splitter, mamanu fausaga fesoʻotaʻiga, vaeluaga fua faatatau optimization, ma aga i le lumanaʻi.
Filifiliga Splitter Optical: PLC ma FBT Tekonolosi Faatusatusaga
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• Lagolago atoa (1260–1650 nm), talafeagai mo faiga fa'a tele-umi;
• Lagolagoina le vaeluaga maualuga (eg, 1 × 64), fa'aofiina gau ≤17 dB;
• Maualuluga o le vevela (-40°C i le 85°C fesuiaiga <0.5 dB);
• Laiti afifi, e ui lava o tau muamua e fai si maualuga.
2. Fused Biconical Taper (FBT) Splitter:
• Lagolagoina na'o galu ma'oti (eg, 1310/1490 nm);
• Faʻatapulaʻa i le vaeluaga maualalo (lalo 1 × 8);
• Fa'aletonu tele le gau i siosiomaga vevela maualuga;
•Tau maualalo, talafeagai mo tala fa'atatau o tupe.
Fuafuaga Filifilia:
I totonu o le taulaga o le taulaga (fale maualuluga, itumalo faʻatau), e tatau ona faʻamuamua le vaeluaga o le PLC ina ia faʻamalieina manaʻoga vaeluaga maualuga aʻo tausisia le fetaui ma le XGS-PON / 50G PON faʻaleleia.
Mo fa'ata'ita'iga i nu'u i tua po'o fa'alaiti, e mafai ona filifilia FBT vaelua e fa'aitiitia ai tau o le fa'aulufaleina. O faʻamatalaga tau maketi o loʻo faʻaalia ai le PLC maketi o le a sili atu i le 80% (LightCounting 2024), faʻapitoa ona o lona faʻaogaina faʻatekonolosi.
Fuafuaga Fa'atutuga Feso'otaiga: Fa'atotonugalemu fa'asaga Fa'asoa Fa'asoa
1. Centralized Tier-1 Splitter
• Topology: OLT → 1 × 32 / 1 × 64 splitter (faʻapipiʻiina i le potu meafaigaluega / FDH) → ONT.
• Fa'amatalaga talafeagai: CBDs i taulaga, nofoaga e nonofo ai tagata maualuga.
• Tulaga lelei:
- 30% faʻaleleia atili i le faʻaogaina o nofoaga faʻaletonu;
- Tulaga tasi-tulaga leiloa o le 17-21 dB, lagolagoina le 20 kilomita faʻasalalau;
- Fa'ateleina le gafatia e ala i le suia o le vaeluaga (fa'ata'ita'iga, 1×32 → 1×64).
2. Tufatufaina Tele-Tulaga Splitter
•Topology: OLT → 1×4 (Level 1) → 1×8 (Level 2) → ONT, tautua 32 aiga.
• Tala talafeagai: Nu'u i tua, vaega maugā, fanua fa'ato'aga.
• Tulaga lelei:
- Fa'aitiitia tau alava ivi ivi i le 40%;
- Lagolagoina le fa'aogaina o feso'otaiga mama (otometi le suia o le lala lala);
- Fetuuna'i i laufanua lavelave.
Fa'amalieina o le Vaeluaga Fa'atatau: Fa'apaleni le mamao o le felauaiga ma mana'oga Bandwidth
1. Tagata Fa'aoga Fa'atasi ma Fa'amautinoaga Bandwidth
I lalo o le XGS-PON (10G i lalo) ma le 1 × 64 splitter configuration, o le pito i luga o le bandwidth i le tagata faʻaoga e tusa ma le 156Mbps (50% concurrency rate);
O vaega maualuluga e mana'omia le Dynamic Bandwidth Allocation (DBA) po'o le fa'alauteleina o le C++ band e fa'aleleia ai le gafatia.
2. Fa'aleleia o le Lumanai Tulaga
Fa'asao le ≥3dB fa'aogaina o le mana fa'aogaina e fa'aoga ai le matua o fibre;
Filifili PLC splitters ma fetuutuunai vaelua ratios (fa'ata'ita'iga, configurable 1 × 32 ↔ 1 × 64) e aloese mai le toe fausia.
Fua'iga i le Lumana'i ma Fa'amatalaga Fa'atekonolosi
O tekinolosi a le PLC e taʻitaʻia ai le vaeluaga maualuga:O le faʻateleina o le 10G PON ua faʻamalosia ai le vaeluaina o le PLC i le vaʻaia masani, lagolagoina le faʻaleleia lelei i le 50G PON.
Faiga fa'atusa fa'atusa:O le tu'ufa'atasia o le vaeluaga e tasi i totonu o le taulaga ma le vaeluaga o le tele o vaega i totonu o sone i tua'oi e paleni le lelei o le fa'asoa ma le tau.
Tekinolosi ODN atamai:eODN e mafai ai ona toe fetuutuuna'i mamao o vaeluaga o vaeluaga ma va'aiga sese, fa'aleleia le atamai fa'atino.
Silicon photonics tu'ufa'atasiga manuia:Monolithic 32-channel PLC tupe meataalo faʻaititia tau i le 50%, mafai ai 1 × 128 ultra-maualuga vaeluaga faʻatusatusa e faʻalautele ai le atinaʻeina o aai atamai uma.
E ala i filifiliga fa'atekonolosi fa'apitoa, fetu'utu'una'i fa'ata'ita'iga fa'ata'ita'iga, ma fa'amanino le vaeluaga o fua fa'atatau, e mafai e feso'ota'iga FTTH ona lagolagoina lelei le fa'asolo atu o feso'ota'iga alalaupapa gigabit ma mana'oga fa'atekonolosi e sefulu tausaga i le lumana'i.
Taimi meli: Sep-04-2025