Mukuvaka network yefiber-to-the-home (FTTH), optical splitters, sezvikamu zvikuru zve passive optical networks (PONs), zvinogonesa kugovana fiber imwe chete nevashandisi vakawanda kuburikidza nekugoverwa kwesimba re optical, zvichikanganisa zvakananga mashandiro enetwork uye ruzivo rwemushandisi. Chinyorwa chino chinoongorora matekinoroji akakosha mukuronga kweFTTH kubva pamaonero mana: kusarudza tekinoroji ye optical splitter, dhizaini yezvivakwa zve network, kupatsanura chiyero, uye mafambiro emangwana.
Kusarudzwa kweOptical Splitter: Kuenzanisa kwePLC neFBT Technology
1. Kupatsanura kwePlanar Lightwave Circuit (PLC):
•Rutsigiro rwebhendi rakazara (1260–1650 nm), rwakakodzera masisitimu ehurefu hwemafungu akawanda;
•Inotsigira kupatsanurwa kwepamusoro-soro (semuenzaniso, 1×64), kurasikirwa kwekuisa ≤17 dB;
•Kugadzikana kwakanyanya kwekushisa (-40°C kusvika 85°C kushanduka <0.5 dB);
•Kurongedza kudiki, kunyangwe mitengo yekutanga yakakwira.
2. Kupatsanurana kweBiconical Taper (FBT):
•Inotsigira marefu emvura chaiwo chete (semuenzaniso, 1310/1490 nm);
•Inogumira pakupatsanurana kwepasi (pasi pe1×8);
•Kuchinja-chinja kukuru kwekurasikirwa munzvimbo dzine tembiricha yakakwira;
•Mari shoma, yakakodzera mamiriro ezvinhu asina mari yakawanda.
Nzira yekusarudza:
Munzvimbo dzine vanhu vakawanda mumaguta (zvivakwa zvekugara zvine matenga marefu, nzvimbo dzekutengeserana), michina yePLC splitter inofanira kukosheswa kuti isangane nezvinodiwa zvekupatsanurana kwepamusoro uku ichiramba ichishanda zvakanaka nekuvandudzwa kweXGS-PON/50G PON.
Kune vari kumaruwa kana kuti vane vanhu vashoma, maFBT splitter anogona kusarudzwa kuderedza mari yekutanga yekuisa zvinhu. Kufanotaura kwemusika kunoratidza kuti chikamu chemusika chePLC chichapfuura 80% (LightCounting 2024), kunyanya nekuda kwekubatsira kwayo kusimudzira tekinoroji.
Kugadzira Magadzirirwo Emambure: Kupatsanurana Kwepakati Nekupatsanurwa
1. Centralised Tier-1 Splitter
•Topology: OLT → 1×32/1×64 splitter (yakaiswa mukamuri remidziyo/FDH) → ONT.
•Mamiriro ezvinhu anoshanda: Maguta eCBD, nzvimbo dzekugara dzine vanhu vakawanda.
•Zvakanakira:
- Kuvandudzwa kwe30% mukushanda zvakanaka kwenzvimbo yekukanganisa;
- Kurasikirwa kwe17–21 dB padanho rimwe chete, zvichitsigira kufambiswa kwe20 km;
- Kuwedzera simba nekukurumidza kuburikidza nekutsiva ma splitter (semuenzaniso, 1×32 → 1×64).
2. Kuparadzanisa Kwemazinga Akawanda Kwakaparadzirwa
•Topology: OLT → 1×4 (Level 1) → 1×8 (Level 2) → ONT, inoshandira mhuri makumi matatu nembiri.
•Mamiriro ezvinhu akakodzera: Nzvimbo dzekumaruwa, matunhu ane makomo, misha yedzimba.
•Zvakanakira:
- Inoderedza mitengo yefiber yemusana ne40%;
- Inotsigira kudzokorora kwenetwork yeringi (kuchinja otomatiki kwezvikanganiso zvebazi);
- Inogona kugadziriswa munzvimbo dzakaoma.
Kugadzirisa Kupatsanurwa Kwehuwandu: Kuenzanisa Kureba Kwekutumira uye Zvinodiwa zveBandwidth
1. Kuenderana Kwemushandisi uye Kuvimbiswa Kwebandwidth
Pasi peXGS-PON (10G pasi pemvura) ine 1×64 splitter configuration, peak bandwidth pamushandisi inenge iri 156Mbps (50% concurrency rate);
Nzvimbo dzine huwandu hwakawanda hwe data dzinoda Dynamic Bandwidth Allocation (DBA) kana expanded C++ band kuti dziwedzere kugona kwayo.
2. Kugadziriswa Kwekuvandudzwa Kwemangwana
Chengetedza ≥3dB simba remagetsi kuti rikwanise kukwegura kwefiber;
Sarudza maPLC splitters ane adjustable splitting ratios (semuenzaniso, configurable 1×32 ↔ 1×64) kudzivirira kugadzirwa kusingadzoreki.
Mafambiro Emangwana uye Kuvandudzwa Kwetekinoroji
Tekinoroji yePLC inotungamira mukupatsanurana kwepamusoro-soro:Kuwanda kwe10G PON kwakaita kuti maPLC splitters atange kushandiswa zvakanyanya, zvichitsigira kuvandudzwa kuri nyore kuenda ku50G PON.
Kugamuchirwa kwezvivakwa zvehybrid:Kubatanidza kupatsanurana kwechikamu chimwe chete munzvimbo dzemaguta nekupatsanurana kwezvikamu zvakawanda munzvimbo dzemaguta kunoenzanisa kushanda zvakanaka kwenzvimbo uye mutengo.
Tekinoroji yeODN ine hungwaru:eODN inogonesa kugadzirisa zvakare ma "splitting ratios" ari kure uye kufanotaura zvikanganiso, zvichivandudza hungwaru hwekushanda.
Kubudirira kwekubatanidzwa kweSilicon photonics:Machipisi eMonolithic 32-channel PLC anoderedza mitengo ne50%, zvichiita kuti 1×128 ultra-high splitting ratios ifambire mberi kufambira mberi kwekuvandudzwa kweguta remagetsi.
Kuburikidza nekusarudza tekinoroji yakagadzirirwa, kushandiswa kwezvivakwa zvinochinjika, uye kugadzirisa chiyero chekuchinjana kwesimba, network dzeFTTH dzinogona kutsigira zvinobudirira kuburitswa kwegigabit broadband uye zvinodiwa zvekushanduka kwetekinoroji kwemakore gumi anotevera.
Nguva yekutumira: Gunyana-04-2025