Mu fiber-to-the-home (FTTH) network yekuvaka, optical splitters, sepakati zvikamu zve passive optical network (PONs), inogonesa kugovana kwevashandisi vakawanda kwefiber imwe chete kuburikidza nekugovera magetsi emagetsi, zvichikanganisa zvakananga network performance uye ruzivo rwemushandisi. Ichi chinyorwa chinoongorora zvakarongeka matekinoroji ekuronga kweFTTH kubva pamativi mana: optical splitter tekinoroji sarudzo, network architecture dhizaini, kupatsanura ratio optimization, uye mafambiro emangwana.
Optical Splitter Sarudzo: PLC uye FBT Technology Kuenzanisa
1. Planar Lightwave Circuit (PLC) Splitter:
•Full-band support (1260-1650 nm), yakakodzera kune akawanda-wavelength masisitimu;
• Inotsigira kuparadzaniswa kwepamusoro-soro (semuenzaniso, 1 × 64), kurasikirwa kwekuisa ≤17 dB;
•Kugadzikana kwekushisa kwepamusoro (-40 ° C kusvika 85 ° C kushanduka <0.5 dB);
•Miniature packaging, kunyangwe mari yekutanga yakakwira zvakati.
2. Yakasanganiswa Biconical Taper (FBT) Splitter:
• Inotsigira chaiwo wavelengths (semuenzaniso, 1310/1490 nm);
• Inogumira kune yakaderera-yakarongeka kupatsanurwa (pasi pe1 × 8);
•Kurasikirwa kwakakosha kushanduka munzvimbo dzepamusoro-tembiricha;
•Mutengo wakaderera, wakakodzera bhajeti-yakaganhurirwa mamiriro.
Sarudzo Strategy:
Mumadhorobha akakwirira-density nzvimbo (yakakwirira-inokwira zvivakwa zvekugara, matunhu ekutengeserana), PLC inopatsanura inofanirwa kukoshesa kusangana nepamusoro-soro kupatsanura zvinodiwa uku ichichengetedza kuenderana neXGS-PON/50G PON upgrades.
Kumaruwa kana pasi-density scenarios, FBT splitters inogona kusarudzwa kuderedza mari yekutanga kutumira. Kufanotaura kwemusika kunoratidza PLC musika wemugove uchapfuura 80% (LightCounting 2024), zvakanyanya nekuda kweiyo tekinoroji scalability zvakanakira.
Network Architecture Dhizaini: Pakati pepakati inopesana neDistributed Splitting
1. Centralized Tier-1 Splitter
•Topology: OLT → 1×32/1×64 splitter (yakaiswa mukamuri yemidziyo/FDH) → ONT.
•Mamiriro anoshanda: Urban CBDs, nzvimbo dzekugara dzakakwirira-density.
•Zvakanakira:
- 30% kuvandudzwa mukukanganisa kwenzvimbo kugona;
- Single-nhanho kurasikirwa kwe17-21 dB, inotsigira 20 km kutapurirana;
-Kukurumidza kuwedzera huwandu kuburikidza nekupatsanura kutsiva (semuenzaniso, 1 × 32 → 1 × 64).
2. Yakagoverwa Multi-Level Splitter
•Topology: OLT → 1×4 (Level 1) → 1×8 (Level 2) → ONT, kushandira mhuri makumi matatu nembiri.
•Mamiriro akakodzera: Nzvimbo dzekumaruwa, matunhu ane makomo, villa estates.
•Zvakanakira:
- Inoderedza mutengo wemusana fiber ne40%;
- Inotsigira mhete network redundancy (otomatiki yebazi kukanganisa switching);
- Inochinjika kune yakaoma terrain.
Optimization yeSplitting Ratio: Kuenzanisa Kutapurirana Distance uye Bandwidth Zvinodiwa
1. Mushandisi Concurrency uye Bandwidth Assurance
Pasi pe XGS-PON (10G yakadzika) ne 1 × 64 splitter configuration, peak bandwidth per user inenge 156Mbps (50% concurrency rate);
Nzvimbo dzakasimba zvakanyanya dzinoda Dynamic Bandwidth Allocation (DBA) kana yakawedzera C++ bhendi kuti iwedzere kugona.
2. Future Upgrade Provisioning
Chengetedza ≥3dB optical power margin kuti igadzirise kukwegura kwefiber;
Sarudza PLC zvidimbu zvine anochinjika kupatsanura ratios (semuenzaniso, configurable 1 × 32 ↔ 1 × 64) kudzivirira redundant kuvaka.
Ramangwana Trends uye Tekinoroji Innovation
PLC tekinoroji inotungamira yakakwira-odha kupatsanura:Kuwedzera kwe10G PON kwakasimudzira PLC splitters mukugamuchirwa kukuru, kutsigira kukwidziridzwa kusina musono ku50G PON.
Kugamuchirwa kweHybrid architecture:Kubatanidza kupatsanurwa kwechikamu chimwe chete munzvimbo dzemudhorobha nekupatsanurwa kwematanho akawanda munzvimbo dzepasi pevhu zvinoyera kuvharika kwekushanda uye mutengo.
Intelligent ODN tekinoroji:eODN inogonesa kure kure kugadziridzwa kwekupatsanura reshiyo uye kufanotaura kukanganisa, inosimudzira huchenjeri hwekushanda.
Silicon photonics yekubatanidza kubudirira:Monolithic 32-channel PLC machipisi anoderedza mutengo ne50%, zvichiita kuti 1 × 128 yekupedzisira-yakakwirira kupatsanura reshiyo kufambisira mberi ese-optical smart guta budiriro.
Kuburikidza neakarongedzerwa tekinoroji kusarudzwa, inochinjika dhizaini yekuisa, uye ine simba kupatsanura ratio optimization, FTTH network inogona kunyatso tsigira gigabit Broadband kuburitswa uye gumi-refu-refu tekinoroji shanduko zvinodiwa.
Nguva yekutumira: Sep-04-2025