Cov Fiber Ntau Fiber Optic Specifications
Fiber ntau qhov ntev:
1) tib {{- Hom Hom Cov Tub Ntxhais Txheej Txheem: 9 / 125μm, 10/25μm
2) cladding oterter inch (2d)= 125 μm
3) Thawj {-} Tsho tiv no tawm txoj kab uas hla {2} μm
4) Pigtail: 300μm
5) Multlimode:
50 / 125μm, European Txuj
62,5 / 125μm, peb tus qauv
6) Kev lag luam, kev kho mob, thiab qis {- Ceev cov tes hauj lwm: 100 / 1430μm
7) Yas: 98 / 1000μm, siv nyob rau hauv kev tswj lag luam
Fiber ntau optic attenuation
Lub ntsiab tseem ceeb ua rau muaj kev ua raws fiber
Intrinsic poob: Qhov no yog hais txog qhov muaj fiber ntau, suav nrog rayleigh tawg thiab kev nqus cov pa taws.
Dabtsi yog khoov poob: thaum lub fiber ntau yog khoov, qee lub teeb nyob rau hauv cov fiber ntau yog ploj vim tawg, ua rau poob. Extrusion: poob tshwm sim los ntawm feeb los ntawm kho qhov muag ntawm cov khoom siv kho tshiab thaum raug rau compression.
Impurities: poob tshwm sim los ntawm impurities tsis pub dhau lub qhov muag fiber nqus thiab tawg lub teeb pom kev hauv nws.
Tsis - kev sib yuav: poob tshwm sim los ntawm qhov tsis- uniform Reidnate index ntawm cov khoom siv fiber ntau.
Kev cais tawm: poob tsim lub sijhawm thaum lub sijhawm kho qhov muag fiber ntau, xws li: kev tsis zoo ntawm lub ntsej muag, tsis yog}
Hom ntawm cov khoom siv kho qhov muag
1) los ntawm kev tso cov txheej txheem: tus kheej - Kev txhawb nqa optical cable cables, thiab submarine cable cov cable, thiab submarine cable.
2) los ntawm cable qauv: xoob raj ntawm cov raj ntsuas hluav taws xob, nruj} cov roj optical, tsis yog qhov tseeb ntawm cov cable, thiab cranyptical
3) los ntawm daim ntawv thov: Ntev - deb ntawm cov kab sib txuas lus optical optical cables Fiber Optic Cable Splicing thiab txiav
Fiber Optic Cable Splicing thiab txiav yog cov kev txawj ntse uas muaj fiber ntau optic Cable Kab Nkawm Poj Niam Cov Neeg Ua Haujlwm Yuav Tsum Tau Tswv.
Fiber Optic RECTIC COOLATING Cov txheej txheem tuaj yeem faib raws li hauv qab no:
1) Fiber Optic Splicing Techniques thiab Fiber Optic Cable Splicing Techning.
2) Fiber Optic Cable Kev txiav tawm yog zoo li Fiber Optic Cable Splicing, tab sis kev ua haujlwm txawv vim tias cov ntaub ntawv sib txawv.
Hom Fiber Optic Sprotic
Fiber Optic RECTIC CUB CABLE SUPS yuav feem ntau tau muab faib ua ob pawg tseem ceeb:
1) Cov khoom siv hluav taws xob fiber ntau optic splices (feem ntau hu ua cov pob qij txha tuag pob qij txha). Cov no feem ntau ua tiav siv Fiber ntau fusion Splicers thiab yog siv rau kev sib txuas nrog fiber ntau fiber ntau.
2) Yooj Yim Fiber Fiber Optic Joint (feem ntau hu ua nyob pob qij txha). Cov no tau txuas nrog siv cov cathable connitors (feem ntau hu ua nyob pob qij txha). Lawv tau siv rau cov fiber ntau cov hlua, cov khoom sib txuas, thiab lwm yam.
Vim yog cov tsis tiav ntawm cov fiber ntau lub ntsej muag thiab lub ntsej muag tsis sib xws ntawm cov fiber ntau lub ntsej muag, qhov sib koom ua ke fusion slicing yog qhov siab. Tam sim no, ib tug ob {- kev lom zem fusion Splicing txoj kev yog siv. Ua ntej, lub ntsej muag fiber ntau yog cov duab ua ntej, tshem cov hmoov av kawg, thiab ua kom muaj zog ua kom zoo nkauj ntawm lub ntsej muag fiber ntau.
Cov hau kev rau kev saib xyuas cov fiber ntau optic kev sib txuas tsis tau
Muaj peb txoj hauv kev los saib xyuas Fiber Optic Kev Sib Txuas Poob:
1. Saib xyuas ntawm cov fusion slicer.
2. Kev saib xyuas siv lub teeb ci thiab cov hluav taws xob kho qhov muag.
3. OTDR ntsuas txoj kev.
Cov Txheej Txheem Kev Lag Luam Fiber Optic Splicing Txheej Txheem
Fiber Optic Splicing ua haujlwm feem ntau muaj tsib kauj ruam:
1. Fiber kawg lub ntsej muag kho mob.
2. Fiber Splicing thiab Installation.
3. Fiberion fusion slicing.
4. Kev tiv thaiv cov fiber ntau cov khoom sib txuas.
5. Khaws cia ntawm ntau tshaj fiber ntau.
Qhov kev sib tw ntawm tag nrho cov kev tawm siv kho tshiab feem ntau ua raws li cov kauj ruam hauv qab no:
Kauj ruam 1: Txiav txim siab qhov ntev, sawb lub tshuab kho tshiab, thiab tshem cov txaj;
Kauj Ruam 2: Ntxuav thiab tshem tawm cov roj av jelly sau cov ntaub ntawv sab hauv lub qhov muag cable.
Kauj ruam 3: Pob khoom siv kho qhov muag.
Kauj Ruam 4: Txheeb xyuas cov naj npawb ntawm fiber ntau cores, phim cov xov tooj fiber ntau, thiab txheeb xyuas cov xim xim rau qhov yuam kev;
Kauj Ruam 5: Ntxiv dag zog rau cov tub ntxhais Spicing;
Kauj Ruam 6: Splice ntau yam pawg xov hlau, suav nrog cov kev pab cuam hlau, tswj kav hlau, ntaub thaiv av hauv av hlau muaj nyob).
Kauj ruam 7: Fiber Optic Splicing.
Kauj ruam 8: Fiber Optic Txuas Kev Tiv Thaiv Kev Kho Mob;
Kauj Ruam 9: Fiber Optic Ntau Dhau Kev Tiv Thaiv Fiber Ntau Ntau Ntau Txheej Txheem;
Kauj ruam 10: Ua tiav cov kev sib txig ntawm lub tshuab muag khoom siv kho tshiab;
Kauj Ruam 11: Kev tiv thaiv ntawm lub tshuab txuas tawm kho tshiab.
Fiber Optic Poob
1310 NM: 0.35 ~ 0.5 DB / KM
1550 nm: 0.2 ~ 0.3 DB / KM
850 NM: 2.3 ~ 3.4 DB / KM
Fiber Optic Fusion Splice Poob: 0.08 DB / Daim Txhuam Cev
Fiber Optic Fusion Splice 1km
Cov Fiber Fiber Optic Litinology
1) attenuation
Attenuation: Qhov ploj ntawm lub teeb ntawm qhov kev sib cuag nrog lub optic cable. Kev siv zog thaum muaj zog hauv kev kis tau roj
- hom fiber 1310nm: 0.4 ~ 0.6db / km; 1550nm: 0.2 ~ 0.3db / km; Yas multimode fiber ntau: 300db / km
2) Dispersion
Dispersion: Lub dav hlau tshwm sim los ntawm lub teeb mem tes mus ncig ib qho kev ncua deb raws li cov kev ntsuas muaj roj. Nws yog lub ntsiab lus tseem ceeb txwv cov kis tus nqi.
Kev faib tawm sib txawv: tshwm sim tsuas yog nyob rau hauv multimode fibers vim tias cov qauv sib txawv ntawm lub teeb taug kev raws txoj kev sib txawv.
Khoom siv Dispersion: Lub teeb ntawm txawv wavelengths mus ncig ntawm cov sib txawv ceev.
WaveGuide discersion: tshwm sim vim tias lub teeb hluav taws xob mus ncig ntawm kev sib txawv me ntsis hauv cov tub ntxhais thiab cladding. Hauv ib qho - hom hom fibers, nws yog ib qho tseem ceeb uas yuav hloov cov dispersion los ntawm kev hloov cov qauv sab hauv ntawm cov fiber.
G.652 xoom dispersion taw tes ib ncig 1300nm
G.653 Xoom Zej Zog Diship Taw Ib ncig 1550nm
G.654 Kev Ua Tsis Zoo Fiber Ntau
G.655 Dispersion - Ua haujlwm fiber ntau
Tag nrho - koj yoj
3) tawg
Vim yog tsis muaj txiaj ntsig hauv cov qauv yooj yim ntawm lub teeb, lub teeb hluav taws xob ploj, thiab lub teeb ci ntsa iab tsis muaj kev paub zoo ntxiv.
Optic Systems
Cov Fiber Ntau Optic System Architecture thiab Cov Haujlwm:
1. Cov chaw xa khoom: hloov hluav taws xob cov cim rau hauv kev ntsuas kho qhov muag;
2. Kev Thauj Khoom Siv: Lub Nruab Nrab nqa cov cim optical;
3. Tau txais chav haujlwm: Tau txais cov phiajcim kho tshiab thiab hloov lawv mus rau hauv cov cim hluav taws xob;
4. Txuas cov khoom siv: txuas fiber ntau optics rau lub chaw teeb tsa, photodetectors, thiab lwm cov fiber ntau dua tshiab.
Hom Txuas Ntau Hom
Ntu ua ntej "/" qhia tau tus qauv txuas rau tus pigtail.
Ib feem tom qab "/" qhia tus ntoo khaub lig - kev txheej txheem.
Qhov "sc" txuas (square txuas / tus qauv txuas txuas) yog cov qauv square connoror ua los ntawm engineering tshuab hluav taws xob zoo li kub siab thiab tsis kam ua rau oxidation. Scrinors feem ntau yog siv rau kev cuam tshuam kho qhov muag ntawm cov khoom siv sab nraud.
Lub "LC" connector (lucent connector) zoo ib yam li cov duab rau qhov sc txuas tab sis me ntsis me dua.
Lub "FC" connector (ferrule txuas) yog cov hlau txuas, feem ntau yog siv rau sab odf. Cov sib txuas hlau muaj lub neej kom siab dua mating dua li cov roj hmab.
Qhov "st" (cov ncauj lus ncaj) yog lub snap - haum round connector, kuj ua los ntawm cov hlau.
Connector kawg ntsej muag hom
PC (Physical Contact): Its connector cross-section is flat. Return loss: >40DB
UPC (Ultrapolished Connstors): Lub txuas txuas yog nkhaus. Rov qab poob: 50DB ~ 55dB
APC (AnglePolished Connector): The cross-section has an 8-degree inclined contact surface. Return loss: >60db
Coupler
Lub ntsiab ua haujlwm tseem ceeb: rov qhia cov cim optical. Cov ntawv thov tseem ceeb suav nrog fiber ntau cov tes hauj lwm, tshwj xeeb tshaj yog cov neeg hauv nroog (LANG)
Cov Qauv Pib: Cov nqi txuas yog Bilirectional passive. Cov ntsiab lus yooj yim muaj xws li tsob ntoo thiab cov hnub qub kos duab. Hom sib xws ntawm Coupler yog lub splitter.
Wavelength division multxer
Wdm - wavelength faib cov cim kho qhov muag nrog cov xim sib txawv thiab cov xim tsis pub dhau ntawm ib lub khoos kas ib zaug. Ib lub wavelength division multiplexer khub niam txiv muaj cim rau tib lub fiber; Ib qho Dewavelength faib cov kev cais tawm cov cim los ntawm ib lub khoos phis tawm.
Wavelength division cultipxer (piv txwv)
Hloov chaw
Tau Txais Chav Tsev
Fiber Optic Digital Kev Sib Txuas Lus
Mem tes cov lus txhais hauv digital system:
1. Amnogitude: Qhov siab ntawm cov mem tes, sawv cev ntawm lub zog kho qhov muag hauv cov khoom siv fiber ntau.
3. Lub sijhawm poob: Lub sijhawm xav tau rau cov mem tes kom poob los ntawm 90% ntawm nws qhov nce mus rau 10%.
2. Lub sijhawm nce: Lub sijhawm xav tau rau cov mem tes kom sawv los ntawm 10% ntawm nws qhov siab tshaj plaws txog 90%.
4. MULTE Dav: Qhov dav ntawm cov mem tes ntawm 50% amplitude, qhia nyob rau lub sijhawm.
5. Lub Sij Hawm: Lub sijhawm tshwj xeeb ntawm cov mem tes, lub sijhawm yuav tsum ua kom tiav ib lub voj voog.
6. Kev tshem tawm Ratio: Qhov piv ntawm lub zog kho qhov muag ntawm 1 lub teeb liab mus rau lub zog kho qhov muag ntawm 0 lub teeb liab.
Cov ntsiab lus ntawm feem ntau siv cov chav siv hauv fiber ntau kev sib txuas lus:
1. Db {= 10 Log10 (Pout / Pin)
Pout: Tso zis ntau zog; Tus Pin: Cov Khoom Siv Hluav Taws Xob
2. DBM=10 Log10 (P / 1MW)
Dav dav siv nyob rau hauv kev sib txuas lus engineering;
Feem ntau yog sawv cev kho qhov muag hluav taws xob nrog 1 MilliWatt ua cov siv;
Piv txwv li: -10dbm txhais tau tias lub zog kho qhov muag sib npaug nrog 100μW.
3. DBU=10 log10 (p / 1μW)
