Muri fibre-to-the-home (FTTH) kubaka urusobe, gutandukanya optique, nkibice byingenzi bigize imiyoboro ya optique (PONs), ituma abakoresha benshi basangira fibre imwe binyuze mumashanyarazi ya optique, bigira ingaruka kumikorere y'urusobekerane hamwe nuburambe bwabakoresha. Iyi ngingo isesengura muburyo bwa tekinoroji yingenzi muri gahunda ya FTTH uhereye kubintu bine: guhitamo tekinoroji ya optique itandukanya, igishushanyo mbonera cyubwubatsi, kugabanya igipimo cyiza, hamwe nigihe kizaza.
Guhitamo Amahitamo meza: Kugereranya ikoranabuhanga rya PLC na FBT
1. Umuzenguruko wa Planar Lightwave (PLC) Gutandukanya:
• Inkunga yuzuye (1260–1650 nm), ibereye sisitemu yuburebure bwinshi;
• Shyigikira gutandukana murwego rwo hejuru (urugero, 1 × 64), igihombo cyo kwinjiza ≤17 dB;
• Ubushyuhe bwo hejuru (-40 ° C kugeza 85 ° C ihindagurika <0.5 dB);
• Gupakira ntoya, nubwo ibiciro byambere biri hejuru.
2. Ikoreshwa rya Biconical Taper (FBT) Splitter:
• Shyigikira gusa uburebure bwihariye (urugero, 1310/1490 nm);
• Kugarukira kugabanura gahunda yo hasi (munsi ya 1 × 8);
• Imihindagurikire ikomeye yibihombo mubushyuhe bwo hejuru;
• Igiciro gito, gikwiranye ningengo yimishinga itagabanijwe.
Ingamba zo Guhitamo:
Mu mijyi ifite ubucucike bukabije (inyubako ndende zo guturamo, uturere twubucuruzi), ibice bya PLC bigomba gushyirwa imbere kugirango byuzuze ibisabwa byo kugabana byinshi murwego rwo gukomeza guhuza XGS-PON / 50G PON.
Kubijyanye nicyaro cyangwa ubucucike buke, ibice bya FBT birashobora gutoranywa kugirango bigabanye ibiciro byambere byoherejwe. Ibiteganijwe ku isoko byerekana ko isoko rya PLC rizarenga 80% (LightCounting 2024), bitewe ahanini n’ikoranabuhanga ryagutse.
Igishushanyo mbonera cy'urusobe: Hagati hamwe na Gukwirakwizwa
1. Icyiciro cyo hagati Icyiciro-1 Gutandukanya
• Topologiya: OLT → 1 × 32/1 × 64 gutandukanya (byoherejwe mubyumba byibikoresho / FDH) → ONT.
• Ibintu byakoreshwa: CBDs zo mu mijyi, ahantu hatuwe cyane.
• Ibyiza:
- 30% kunoza imikorere yikosa;
- Gutakaza icyiciro kimwe cya 17-21 dB, gushyigikira km 20;
- Kwagura ubushobozi bwihuse binyuze mu gusimbuza ibice (urugero, 1 × 32 → 1 × 64).
2. Ikwirakwizwa ryinshi-Urwego Rwinshi
• Topologiya: OLT → 1 × 4 (Urwego 1) → 1 × 8 (Urwego 2) → ONT, ikorera ingo 32.
• Ibihe bibereye: Icyaro, uturere twimisozi, amazu ya villa.
• Ibyiza:
- Kugabanya fibre fibre 40%;
- Shyigikira impeta y'urusobekerane (guhinduranya amashami yikora);
- Ihuza n'ubutaka bugoye.
Gukwirakwiza igipimo cyo gutandukanya: Kuringaniza intera yoherejwe hamwe nibisabwa umurongo
1. Umukoresha Guhuza hamwe nubwishingizi bwumurongo
Munsi ya XGS-PON (10G kumanuka) hamwe na 1 × 64 iboneza ibice, umurongo mugari wa buri mukoresha ni 156Mbps (igipimo cya 50%);
Ahantu hacucitse cyane bisaba Dynamic Bandwidth Allocation (DBA) cyangwa kwagura C ++ band kugirango yongere ubushobozi.
2. Gutanga ejo hazaza
Zigama ≥3dB optique ya optique kugirango ibashe gusaza fibre;
Hitamo ibice bya PLC hamwe nibishobora kugabanywa (urugero, kugereranywa 1 × 32 ↔ 1 × 64) kugirango wirinde kubaka.
Ibizaza hamwe no guhanga udushya mu ikoranabuhanga
Ikoranabuhanga rya PLC riyobora gutandukana murwego rwo hejuru:Ikwirakwizwa rya 10G PON ryatumye amacakubiri ya PLC yinjira muburyo rusange, ashyigikira kuzamura 50G PON.
Kwubaka Hybrid:Gukomatanya kugabana urwego rumwe mumijyi hamwe no kugabana urwego rwinshi muri zone yumujyi uringaniza uburyo bwo gukwirakwiza no kugiciro.
Ubuhanga bwa ODN bwubwenge:eODN ituma ivugurura rya kure ryo gutandukanya ibipimo no guhanura amakosa, byongera ubwenge bwimikorere.
Silicon Photonics ihuza intambwe:Monolithic 32-imiyoboro ya PLC igabanya ibiciro 50%, ituma 1 × 128 igabanywa ryinshi cyane kugirango igabanye iterambere ryumujyi wa optique.
Binyuze mu guhitamo tekinoloji yihariye, uburyo bworoshye bwububiko, hamwe no kugabanya ibipimo bigabanya imbaraga, imiyoboro ya FTTH irashobora gushyigikira byimazeyo umurongo mugari wa gigabit hamwe nibisabwa mu myaka icumi ishize.
Igihe cyo kohereza: Nzeri-04-2025