N'ime ihe owuwu netwọkụ fiber-to-the-home (FTTH), ndị na-eke ihe anya, dị ka isi akụrụngwa nke netwọkụ anya anya (PONs), mee ka ọtụtụ ndị ọrụ kesaa otu eriri site na nkesa ike anya, na-emetụta arụmọrụ netwọkụ ozugbo yana ahụmịhe onye ọrụ. Edemede a na-enyocha usoro teknụzụ ndị bụ isi na atụmatụ FTTH site n'akụkụ anọ: nhọrọ teknụzụ nkesa anya, imewe nhazi netwọkụ, njikarịcha oke nkewa, na usoro n'ọdịnihu.
Nhọrọ ngwa anya Splitter: PLC na FBT Ntụle Nkà na ụzụ
1. Planar Lightwave Circuit (PLC) Nkesa:
• Nkwado zuru oke (1260-1650 nm), adabara maka ọtụtụ usoro ogologo oge;
• Na-akwado nkewa dị elu (dịka, 1 × 64), nkwụsị ntinye ≤17 dB;
• Nkwụsi ike dị elu (-40 ° C ruo 85 ° C mgbanwe <0.5 dB);
• Nkwakọ ngwaahịa pere mpe, ọ bụ ezie na ụgwọ mbụ dị oke ọnụ.
2. Fused Biconical Taper (FBT) Splitter:
• Na-akwado naanị ogologo wavele ogologo (dịka, 1310/1490 nm);
• Na-ejedebe na nkewa dị ala (n'okpuru 1 × 8);
• Mgbanwe dị ukwuu nke ọnwụ na gburugburu ebe okpomọkụ dị elu;
• ọnụ ala dị ala, dabara adaba maka ọnọdụ ndị nwere mmefu ego.
Atụmatụ nhọrọ:
N'ime obodo mepere emepe (ụlọ obibi dị elu, mpaghara azụmahịa), ndị na-ekewa PLC ga-ebute ụzọ iji zute ihe ndị chọrọ nkewa dị elu ka ha na-ejigide nkwalite na XGS-PON / 50G PON.
Maka ọnọdụ ime obodo ma ọ bụ obere njupụta, enwere ike ịhọrọ ndị nkewa FBT iji belata ụgwọ mbunye mbu. Amụma ahịa na-egosi oke ahịa PLC ga-agafe 80% (LightCounting 2024), bụ isi n'ihi uru scalability teknụzụ ya.
Nhazi nhazi netwọk: Centralized megide nkesa ekesara
1. Centralized Tier-1 Splitter
• Topology: OLT → 1 × 32/1 × 64 splitter (etinyere n'ime ụlọ akụrụngwa / FDH) → ONT.
• Ọnọdụ dị mma: CBD obodo, ebe obibi dị elu.
• Uru:
- 30% nkwalite na arụmọrụ ebe adịghị mma;
- Ọnwụ nke otu nkeji nke 17-21 dB, na-akwado nnyefe 20 km;
- Mgbasawanye ikike ngwa ngwa site na nnọchi nke nkesa (dịka, 1 × 32 → 1 × 64).
2. Kesara Multi-Level Splitter
• Topology: OLT → 1×4 (Ọkwa 1) → 1×8 (Ọkwa 2) → ONT, na-ejere ezinụlọ 32 ozi.
• Ọnọdụ dabara adaba: mpaghara ime obodo, mpaghara ugwu, ala ụlọ villa.
• Uru:
- Na-ebelata ọnụ ahịa eriri azụ site na 40%;
- Na-akwado mgbanaka netwọk mgbanaka (mgbanwe mmejọ alaka akpaaka);
- Nkwekọrịta na mbara ala dị mgbagwoju anya.
Nkwalite nke oke nkewa: ịhazi ohere nnyefe na ihe chọrọ bandwit
1. Onye ọrụ Concurrency na Bandwit nkwa
N'okpuru XGS-PON (10G downstream) na 1 × 64 splitter nhazi, ọnụ ọgụgụ kasị elu nke bandwit maka onye ọrụ bụ ihe dịka 156Mbps (50% concurrency rate);
Mpaghara njupụta dị elu chọrọ oke bandwit Dynamic (DBA) ma ọ bụ band C++ gbasaa iji kwalite ikike.
2. Nkwalite nkwalite n'ọdịnihu
Nchekwa ≥3dB oke ike anya iji nabata ịka nká;
Họrọ PLC splitters nwere nhazi nkewa nkewa (dịka ọmụmaatụ, configurable 1×32 ↔ 1×64) iji zere arụrụ arụ ọrụ.
Ọdịnihu na ihe ọhụrụ teknụzụ
Teknụzụ PLC na-eduga nkewa dị elu:Mmụba nke 10G PON emewo ka ndị na-ekewa PLC banye na nkuchi nkịtị, na-akwado nkwalite enweghị nkebi na 50G PON.
Nkuchi ihe owuwu ngwakọ:Ijikọta nkewa otu ọkwa n'ime obodo mepere emepe yana nkewa ọkwa dị iche iche na mpaghara ime obodo na-edozi arụmọrụ mkpuchi na ọnụ ahịa.
Teknụzụ ODN nwere ọgụgụ isi:eODN na-enyere aka nhazigharị anya nke oke nkewa na amụma mmejọ, na-eme ka ọgụgụ isi rụọ ọrụ.
Ọganihu njikọta nke silicon photonics:Mpekere PLC nke Monolithic 32 na-ebelata ọnụ ahịa site na 50%, na-enyere 1 × 128 oke nkewa dị elu iji kwalite mmepe obodo smart ngwa anya niile.
Site na nhọrọ teknụzụ ahaziri ahazi, ntinye ụlọ na-agbanwe agbanwe, yana njikarịcha nkewa ike, netwọkụ FTTH nwere ike kwado nke ọma gigabit brọdband mpịakọta na ihe chọrọ mgbanwe teknụzụ ogologo afọ ga-abịa.
Oge nzipu: Sep-04-2025