OVD txheej txheem: 150mm G.652.D Optical Fiber Preform
Preform Specifications
Preform Dimensions
Lub preform qhov ntev yuav tsum yog raws li nyob rau hauv daim duab 1.1 hauv qab no.
Table 1.1 Preform Dimensions
| Yam khoom | Kev xav tau | Lus ceeb toom | |
| 1 | Nruab nrab Preform Diameter (OD) | 135 ~ 160 hli | (Nco ntsoov 1.1) |
| 2 | Maximum Preform Diameter (ODmax) | ≤ 160 hli | |
| 3 | Yam tsawg kawg nkaus Preform Diameter (ODmin) | ≥130mm | |
| 4 | Tolerance ntawm OD (hauv Preform) | ≤ 20mm (hauv qhov ncaj) | |
| 5 | Preform Length (nrog rau qhov kov) | 2600 ~ 3600 hli | (Nco ntsoov 1.2) |
| 6 | Siv tau ntev | ≥1800mm | |
| 7 | Taper ntev | ≤ 250 hli | |
| 8 | Txoj kab uas hla kawg ntawm taper | ≤ 30 | |
| 9 | Preform Non-circularity | ≤ 1% | |
| 10 | Concentricity yuam kev | ≤ 0.5 hli | |
| 11 | Qhov tshwm sim | (Nco 1.4 & 1.5) |
Daim duab 1.1 Cov duab ntawm Preform
Lus Cim 1.4: Cov npuas nyob rau sab nrauv cladding (saib daim duab 1.2) yuav tsum tso cai, nyob ntawm qhov loj; tus naj npawb ntawm npuas ib chav tsev ntim yuav tsum tsis pub tshaj cov lus teev tseg hauv Table 1.2 hauv qab no.
Table 1.2 Npuas hauv Preform
Qhov chaw thiab qhov loj ntawm npuas | Number / 1,000 cm3 | |
Core Region (= core + puab cladding) | (Saib Ceeb Toom 1.5) | |
| Sab nrauv Cladding Region (= interface + sab nrauv cladding) | ~ 0.5 hli | Tsis suav |
0.5 ~ 1.0 hli | ≤ 10 | |
1.0 ~ 1.5 hli | ≤ 2 | |
1.5 ~ 2.0 hli | ≤ 1.0 | |
2.1 hli ~ | (Saib Lus Cim 1.5) | |
Daim duab 1.2 Hla-sectional Saib ntawm Preform
Daim duab 1.2 Hla-sectional Saib ntawm Preform
Chargeable Nyhav
Target Fiber yam ntxwv
Thaum cov duab kos thiab cov kev ntsuas ntsuas tau zoo thiab ruaj khov, cov preforms yuav tsum tau ua kom tau raws li cov hom phiaj fiber ntau raws li qhia hauv Table 2.1.
Table 2.1 Cov yam ntxwv ntawm Lub Hom Phiaj Fiber
Yam khoom | Kev xav tau |
| |
1 | Attenuation ntawm 1310 nm | ≤ 0.34 dB/km |
|
Attenuation ntawm 1383 nm | ≤ 0.34 dB/km | (Nco ntsoov 2.1) | |
Attenuation ntawm 1550 nm | ≤ 0.20 dB/km |
| |
Attenuation ntawm 1625 nm | ≤ 0.23 dB/km |
| |
Uniformity ntawm Attenuation | ≤ 0.05 dB / km ntawm 1310 & 1550 nm |
| |
2 | Hom Field Diameter ntawm 1310nm | 9.1 ± 0.4 µm |
|
3 | Cable Cutoff Wavelength (Lcc) | ≤ 1260nm |
|
4 | Zero Dispersion Wavelength (L0) | 1300 ~ 1324 nm |
|
5 | Dispersion ntawm 1285 ~ 1340 nm | -3.8 ~ 3.5ps / (nm·km) |
|
6 | Dispersion 1550nm | 13.3 ~ 18.6 ps / (nm·km) |
|
7 | Dispersion 1625 nm | 17.2 ~ 23.7 ps / (nm·km) |
|
8 | Dispersion Slope ntawm λ0 | 0.073 ~ 0.092 ps / (nm2 ·km) |
|
9 | Core Concentricity yuam kev | ≤ 0.6 µm |
Lus Cim 2.1: Lub attenuation ntawm 1383 nm tom qab hydrogen aging test yuav tsum tsis txhob muab tso rau hauv Table 2.1 vim hais tias nws nyob ntawm lub fiber ntau daim duab.