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Inqubo ye-ORIC:150mm G.657.A2 I-Optial Fiber Preform

    Imininingwane ye-Preform

    Ubukhulu be-Preform

    Ubukhulu be-preform buyoba njengakuThebula 1.1 ngezansi.

    Ithebula 1.1 Ubukhulu be-Preform

    Into Izimfuneko Phawula
    1 I-Average Preform Diameter (OD) 135 ~ 160 mm (Qaphela 1.1)
    2 I-Maximum Preform Diameter (ODmax) ≤ 160 mm
    3 Ubuncane be-Preform Diameter (ODmin) ≥ 130 mm
    4 Ukubekezelela i-OD (ngaphakathi kwe-Preform) ≤ 20 mm ( engxenyeni eqondile)
    5 Ubude be-Preform (kufaka phakathi ingxenye yesibambo) 2600 ~ 3600 mm (Qaphela 1.2)
    6 Ubude obusebenzayo ≥ 1800 mm
    7 Ubude be-taper ≤ 250 mm
    8 Ububanzi ekugcineni kwe-taper ≤ 30
    9 I-Preform Non-circularity ≤ 1%
    10 Iphutha Le-Concentricity ≤ 0.5 μm
    11 Ukubukeka (Qaphela 1.4&1.5)

    Qaphela 1.1: I-diameter ye-preform izokalwa ngokuqhubekayo engxenyeni eqondile ngesikhawu esingu-10mm ngoHlelo Lokulinganisa Ububanzi Be-Laser futhi lichazwe njengesilinganiso samanani akalwayo. Ingxenye ye-taper izochazwa njengendawo ephakathi kuka-A kuya ku-B. Ingxenye Eqondile izochazwa ngokuthi indawo ephakathi kuka-B kuya ku-C. A iyisimo ekupheleni kwe-preform. B indawo yokuqala enomongo osebenzayo. C indawo yokugcina enomongo osebenzayo. I-D iyingxenye yokugcina ye-preform.
    Qaphela 1.2: “Ubude be-Preform” buzochazwa njengoba kuboniswe kuMfanekiso 1.1.
    Qaphela 1.3: Ingxenye Esebenzayo izochazwa njengendawo phakathi kuka-B kuya ku-C.
    Ubude Obukhokhiswayo = Ubude Obusebenzayo - ∑Ubude Obungasebenziseki Ekubi (LUD)

    Umfanekiso 1.1 Ukuma kwe-Preform

    Inqubo ye-OVD1

    Qaphela 1.4: Amabhamuza endaweni yokugqoka yangaphandle (bheka Umfanekiso 1.2) azovunyelwa, kuye ngosayizi; inani lamabhamuza ngeyunithi ngayinye akufanele lidlule lezi ezishiwo kuThebula 1.2 ngezansi.

    Ithebula 1.2 Ibhamuza ku-Preform

    Indawo kanye nosayizi weBubble

    Inombolo / 1,000 cm3

    Isifunda Esiwumgogodla (=umgogodla + ukuvala kwangaphakathi)

    (Bheka Inothi 1.5)

    Isifunda Sokugquma Kwangaphandle

    (=isixhumi esibonakalayo + ukuvala kwangaphandle)

    ~ 0.5 mm

    Akukho Ukubala

    0.5 ~ 1.0 mm

    ≤ 10

    1.0 ~ 1.5 mm

    ≤2

    1.5 ~ 2.0 mm

    ≤ 1.0

    2.1 mm ~

    (Bheka Inothi 1.5)

    Umfanekiso 1.2 Ukubuka Okuphambanayo kwe-Preform

    Inqubo ye-OVD2

    Qaphela 1.5: Uma kukhona noma yimaphi amaphutha, achazwe ngezansi, endaweni ewumgogodla kanye/noma isifunda sokumboza sangaphandle, indawo ehlanganisa u-3 mm ukusuka ohlangothini ngalunye lwesici izochazwa njengengxenye engasebenziseki (Umfanekiso 1.3). Kulesi simo, ubude obusebenzayo buzochazwa ngaphandle kobude bengxenye engasebenziseki. Ingxenye engasebenziseki izokhonjiswa ngokuthi “Defect MAP”, ezonamathiselwa eshidini lokuhlola.
    Amaphutha:
    1. ibhamuza elikhulu kuno-2 mm endaweni engaphandle,
    2. iqoqo lamabhamuza ambalwa endaweni engaphandle,
    3. ibhamuza ekuhlanganisweni kwangaphakathi noma umongo,
    4. into yangaphandle ku-preform,

    Umfanekiso 1.2 Ukubuka Okuphambanayo kwe-Preform

    Inqubo ye-OVD3

    Isisindo Esikhokhiswayo

    Isisindo esikhokhiswayo sizobalwa ngale ndlela elandelayo;
    Isisindo esikhokhiswayo[g] =Isisindo esiphelele se-preform-Asikho isisindo esisebenzayo engxenyeni ecijile nengxenye yesibambo-Isisindo esinesici
    1. Isisindo esiphelele se-preform isisindo esihlolwe imishini.
    2. “Isisindo esingasebenzi kahle engxenyeni ye-taper nengxenye yesibambo” inani elingashintshi elinqunywa ulwazi.
    3. Isisindo esinephutha = Ivolumu yengxenye Yesici[cm3]) × 2.2[g/cm3]; “2.2[g/cm3]” ukuminyana kwengilazi yequartz.
    4. “Umthamo Wengxenye Yesici” = (OD[mm]/2)2 ×Σ(LUD)×π; I-LUD =Ubude obungasebenziseki endaweni eyisici=Ubude Besici+ 6[mm].
    5. I-diameter ye-preform kufanele ikalwe ngokuqhubekayo engxenyeni eqondile ngo-10mm isikhawu ngoHlelo Lokukala Ububanzi Be-Laser.

    I-Target Fiber Characters

    Lapho izimo zokudweba nezimo zokulinganisa zizinhle kakhulu futhi zizinzile, ama-preforms azolindeleka ukuthi ahlangabezane nezicaciso zefayibha eziqondiwe njengoba kukhonjisiwe kuThebula 2.1.

    Ithebula 2.1 I-Target Fiber Characters

     

    Into

    Izimfuneko

     

    1

    Attenuation at 1310 nm

    ≤ 0.34 dB/km

     

    Attenuation at 1383 nm

    ≤ 0.34 dB/km

    (Qaphela 2.1)

    Attenuation at 1550 nm

    ≤ 0.20 dB/km

     

    Attenuation at 1625 nm

    ≤ 0.23 dB/km

     

    Uniformity of Attenuation

    ≤ 0.05 dB/km ku-1310&1550 nm

     

    2

    I-Mode Field Diameter ku-1310 nm

    9.1± 0.4 µm

     

    3

    I-Cable Cutoff Wavelength (λcc)

    ≤ 1260 nm

     

    4

    I-Zero Dispersion Wavelength (λ0)

    1300 ~ 1324 nm

     

    5

    Ukusabalalisa ku-1285 ~ 1340 nm

    -3.8 ~ 3.5 ps/(nm·km)

     

    6

    I-Dispersion 1550 nm

    13.3 ~ 18.6 ps/(nm·km)

     

    7

    I-Dispersion 1625 nm

    17.2 ~ 23.7 ps/(nm·km)

     

    8

    I-Dispersion Slope ku-λ0

    0.073 ~ 0.092 ps/(nm2·km)

     

    9

    Iphutha Le-Core Concentricity

    ≤ 0.6 µm

     

    Qaphela 2.1: Ukuncishiswa ku-1383 nm ngemva kokuhlolwa kokuguga kwe-hydrogen akumele kufakwe kuThebula 2.1 ngoba kuncike kakhulu ezimeni zokudweba ifayibha.