Ib Hom Fiber Ntau Hom: G652 vs G655 Fiber
Ib Hom Fiber Ntau: Dab tsi yog G652?
G652 tam sim no feem ntau nrov npe txais ib hom fiber ntau, rau cov G652 yog txhais raws li Standard SMF. Nws muaj G652A, B, C thiab D plaub hom. G652A thiab B muaj xoom dispersion wavelength taw tes ntawm 1310 nm, uas ua rau nws zoo nkauj rau kev ua haujlwm hauv 1310 nm band. Txawm li cas los xij, lawv tsis haum rau daim ntawv thov nyob rau hauv Wavelength Division Multiplexing (WDM) vim yog dej siab. Tshaj C thiab D tau zoo dua nrog kev tshem tawm cov dej siab rau kev ua haujlwm spectrum, uas ua rau lawv muaj txiaj ntsig ntawm qhov ntev ntawm 1310 txog 1550 nm los txhawb Coarse Wavelength Division Multiplexing (CWDM). Sib piv G652C, G652D ib hom fiber ntau muaj qhov zoo dua PDM (polarization hom dispersion) parameter, rau cov uas G652D yog lub npe hu ua Standard tib hom fiber ntau (SSMF) thiab feem ntau siv los txhawb 10GbE thiab 40GbE system. FOCC muab cov G652D LC fiber ntau hauv ntau hom qauv.
Daim Duab 1: Daim duab no qhia txog FOCC G652D SCA / SCU ib hom fiber ntau.
Ib Hom Fiber Ntau: Dab tsi yog G655?
G655 yog lub npe hu ua nonzero dispersion-hloov pauv fiber ntau (NZDSF), vim hais tias kev tawg ntawm lub nthwv dej ntawm 1550 nm yog ze rau xoom tab sis tsis xoom. Nws tseem raug faib ntxiv rau A, B thiab C peb subcategories. Muaj ob hom NZDSF: (+ D) NZDSF thiab (-D) NZDSF, kev tawg ntawm cov uas feem ntawm cov sib npaug thiab inversely sib npaug rau wavelength. Ntawm lawv, qhov kev faib tawm zoo ntawm G655 kov yeej qhov tsis tshwm sim ntawm WDM system xws li plaub nthwv sib xyaw (FWM) vim tias thaj chaw muaj txiaj ntsig zoo. G655 tau teev nyob rau hauv 1550 nm thiab 1620 nm, thiab tsis tshua muaj nqi ntawm chromatic dispersion hauv c-band (1530-1660 nm), uas Erbium Doped Fiber Amplifier (EDFA) txhawb nqa cov cim kho qhov muag. Cov ntais ntawv no muab G655 ib qho ntug dua G652. G655 fiber ntau haum rau DWDM system kom tau raws li nce kev sib kis thiab ntev lub peev xwm ntev WDM kis tau tus mob.
Daim duab 2: Daim duab no qhia tau tias qhov sib txawv ntawm G652 vs G655.
G652 vs G655 Ib Hom Fiber Ntau: Dab tsi yog qhov txawv?
Cov lus hauv qab no qhia cov ncauj lus qhia ntxaws ntawm G652 vs G655 fiber.
| Hom Fiber | G652 | G655 |
| Lwm Lub Npe | Txheem SMF / xoom dispersion-hloov hluav taws xob (tsis yog tawg dispersion-hloov fiber ntau) | Nonzero dispersion-txav fiber ntau (NZDSF) |
| Qhia Txog Wavelength | 1310, 1550, 1625 nm (C thiab D tsis suav) | 1550-1625 nm |
| Qhia Qhov Tsis Txaus Ntseeg | 1310 nm | 1550 nm |
| Kev Tshaj Tawm Tus Nqi | Siab dua | Tsawg |
| Taug Kev Tsis Tuaj | Tsawg dua 0.4 dB / km | Feem ntau 0.2 dB / km ntawm 1550 nm |
| Qauv PMD | Tsawg dua 0.5 dhau C thiab 0.2 tshaj D | Tsawg dua 0.1 ps / sqrt (km) |
| Cov ntawv thov | LAN, txiv neej, nkag rau tes hauj lwm thiab CWDM kis | Kev siv lub tshuab ntev uas siv DWDM xa mus |
| Nqi | Tsawg dua G655 | Siab |
| Nta | Txo cov dej siab | Tsawg tus nqi dispersion; kov yeej nonlinear effect |
Raws li qhia hauv lub rooj, G652 thiab G655 fiber yog ob hom fiber ntau hom tau txhais nrog txawv cov ntsiab lus ntawm wavelength, dispersion, parameter ntawm attenuation thiab PMD. G652 muaj qhov tshwj xeeb xoom dispersion wavelength ntawm 1310 thiab txo dej kom siab mus txhawb CWDM. G655 yog kev txhim kho ib hom fiber ntau nrog cov yam ntxwv ntawm kev tshem tawm ntawm FWM thiab tus nqi qis tsis sib haum, feem ntau thov rau DWDM kis tau ntev thiab siab. Rau kev txiav txim siab ntawm ob qho tib si kev ua haujlwm thiab tus nqi, G652 tshwj xeeb tshaj yog G652D version tau dhau los ua qhov feem ntau siv.
Xaus
Kab lus no qhia ob pawg ntawm ib hom fiber ntau hom thiab ua qhov sib txawv ntawm G652 vs G655. Nws tsis tsim nyog los hais ib hom ntaus lwm tus txij li thaum ob leeg muaj lawv cov yam ntxwv rau cov ntawv thov sib txawv. Txog kev xa khoom tsis tas yuav tsum muaj tus nqi siab thiab txav nrug ntev, G652. D tuaj yeem yog qhov kev xaiv. Tab sis rau ntau lub zog muaj peev xwm thiab qhov ntev yuav tsum muaj DWDM system, G655 yuav ua kom tau zoo tshaj plaws tsis hais tus nqi ntau dua.