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    01
    OVD tsari: 150mm G.652.D Optical Fiber Preform
    OVD tsari: 150mm G.652.D Optical Fiber Preform

    OVD tsari: 150mm G.652.D Optical Fiber Preform

      Tuntube mu

      Ƙididdigar Preform

      Preform Dimensions

      Girman preform zai kasance kamar yadda yake cikin Teburin 1.1 na ƙasa.

      Tebur 1.1 Preform Girma

      Abu Abubuwan bukatu Magana
      1 Matsakaicin Diamita Preform (OD) 135 ~ 160 mm (Lura 1.1)
      2 Matsakaicin Diamita Preform (ODmax) ≤ 160 mm
      3 Mafi ƙarancin Diamita Preform (ODmin) ≥ 130 mm
      4 Haƙuri na OD (a cikin Preform) ≤ 20 mm (a madaidaiciya sashi)
      5 Tsawon Preform (ciki har da bangaren hannu) 2600 ~ 3600 mm (Lura 1.2)
      6 Tsawon inganci ≥ 1800 mm
      7 Tsawon Taper ≤ 250 mm
      8 Diamita a ƙarshen taper ≤ 30
      9 Preform Rashin kewayawa ≤ 1%
      10 Kuskuren Matsala 0.5 μm
      11 Bayyanar (Lura 1.4&1.5)

      Lura 1.1: Za a auna diamita na preform a ci gaba a cikin madaidaiciyar sashi tare da tazara 10mm ta Tsarin Ma'aunin Laser Diamita kuma za a ayyana shi azaman matsakaicin ƙimar ƙima. Za a bayyana ɓangaren Taper azaman matsayi tsakanin A zuwa B. Madaidaicin Sashe za a bayyana shi azaman matsayi tsakanin B zuwa C. A shine matsayi a ƙarshen preform. B shine matsayi na farawa yana da tasiri mai tasiri. C shine matsayi na ƙarshe yana da tasiri mai tasiri. D shine gefen ƙarshen preform.
      Lura 1.2: "Length Preform" za a bayyana kamar yadda aka nuna a cikin Hoto 1.1.
      Lura 1.3: Za a ayyana sashi mai inganci azaman matsayi tsakanin B zuwa C.
      Tsawon Caji = Tsawon Tsayi mai Kyau - ∑ Tsawon da ba a iya amfani da shi a Lalacewar (LUD)

      Hoto 1.1 Siffar Faɗakarwa

      Tsarin OVD

      Lura 1.4: Za a ba da izinin kumfa a cikin yanki na waje (duba Hoto 1.2), dangane da girman; Adadin kumfa a kowace juzu'in raka'a ba zai wuce waɗannan sharuɗɗan a cikin Teburin 1.2 na ƙasa ba.

      Tebur 1.2 Kumfa a cikin Preform

      Wuri da Girman Kumfa

      Lamba / 1,000 cm3

      Yankin Core (= ainihin + rufin ciki)

      (Dubi bayanin kula 1.5)

      Yankin Cladding na waje

      (= Interface + rufin waje)

      ~ 0.5 mm

      Babu Ƙidaya

      0.5 ~ 1.0 mm

      ≤ 10

      1.0 ~ 1.5 mm

      ≤ 2

      1.5 ~ 2.0 mm

      ≤ 1.0

      2.1mm ku

      (Dubi bayanin kula 1.5)

      Hoto 1.2 Duban sashe na giciye na Preform

      Tsarin OVD2

      Lura 1.5: Idan akwai wasu lahani, waɗanda aka bayyana a ƙasa, a cikin yanki mai mahimmanci da / ko yanki na waje, yankin da ke rufe 3 mm daga kowane gefen lahani za a bayyana shi azaman ɓangaren da ba za a iya amfani da shi ba (Hoto 1.3). A wannan yanayin, za a bayyana tsawon tasiri mai tasiri ban da tsawon ɓangaren da ba a iya amfani da shi ba. Za a nuna ɓangaren da ba za a iya amfani da shi ta “Map ɗin Lalacewar”, wanda za a haɗa shi da takardar dubawa.
      Lalacewar:
      1. kumfa mafi girma fiye da 2 mm a cikin rufin waje,
      2. Tarin kumfa a cikin rufin waje.
      3. Kumfa a cikin rufaffiyar ciki ko ta tsakiya,
      4. Bakon abu a cikin preform.

      Hoto 1.2 Duban sashe na giciye na Preform

      Tsarin OVD3

      Nauyin Caji

      Za a lissafta nauyin da ake caji kamar haka;
      Nauyin da ake caji[g]
      1. Jimlar nauyin preform shine nauyin da aka gwada ta kayan aiki.
      2. "Ba tasiri nauyi a taper part da kuma rike part" shi ne wani ƙayyadadden darajar ƙaddara ta gwaninta.
      3. Rashin nauyi ＝ Ƙarfin Lalacewar sashi[cm3]) × 2.2[g/cm3]; "2.2[g/cm3]" shine girman gilashin quartz.
      4. "Ƙarfin Ƙaƙwalwar Sashe" ＝ (OD[mm] / 2) 2 ×Σ (LUD) × π; LUD = Tsawon da ba a yi amfani da shi ba a lahani = Tsawon Lalacewa+ 6[mm].
      5. Za a auna diamita na preform ci gaba a cikin madaidaiciyar sashi tare da tazara na 10mm ta hanyar Tsarin Ma'aunin Laser Diamita.

      Halayen Fiber Target

      Lokacin da yanayin zane da ma'aunin ma'auni suka kasance mafi kyau da kwanciyar hankali, za a sa ran abubuwan da aka tsara za su dace da ƙayyadaddun fiber na manufa kamar yadda aka nuna a cikin Table 2.1.

      Tebur 2.1 Halayen Fiber Target

       

      Abu

      Abubuwan bukatu

       

      1

      Attenuation a 1310 nm

      ≤ 0.34 dB/km

       

      Attenuation a 1383 nm

      ≤ 0.34 dB/km

      (Lura 2.1)

      Attenuation a 1550 nm

      ≤ 0.20 dB/km

       

      Attenuation a 1625 nm

      ≤ 0.23 dB/km

       

      Uniformity na Attenuation

      ≤ 0.05 dB/km a 1310&1550 nm

       

      2

      Yanayin Filin Diamita a 1310 nm

      9.1± 0.4µm

       

      3

      Cable Cutoff Wavelength (λcc)

      ≤ 1260 nm

       

      4

      Tsayin Watsewar Sifili (λ0)

      1300 ~ 1324 nm

       

      5

      Watsawa a 1285 ~ 1340 nm

      -3.8 ~ 3.5ps/(nm·km)

       

      6

      Watsawa 1550 nm

      13.3 ~ 18.6ps/(nm·km)

       

      7

      Watsawa 1625 nm

      17.2 ~ 23.7ps/(nm·km)

       

      8

      Rushewar Watsawa a λ0

      0.073 ~ 0.092 ps/(nm2·km)

       

      9

      Kuskuren Mahimmanci na Core

      0.6µm

      		  

      Lura 2.1: Attenuation a 1383 nm bayan gwajin tsufa na hydrogen ba za a haɗa shi a cikin Teburin 2.1 ba saboda ya dogara da yanayin zane na fiber.