OPTICAL FIBER TSHUAJ ploj - Exhibition - Focc Technology Co., Ltd

OPTICAL FIBER TSHWJ XEEB YUAV TAU

Kev Piav Txhais
Fusion splicing yog txheej txheem los koom nrog ob qho kawg. Lub hwj chim kho qhov muag poob ntawm qhov splicing point yog hu ua splice poob.

Yuav ua li cas splice poob tuaj yeem ntsuas tau?
Tus Optical Sij Hawm Tus Kheej Reflectometer (OTDR) tuaj yeem siv rau cov kev ntsuas splice. Ib txoj xov txuas kem uas muaj cov txaws feem ntau pom tias yog lub hauv caug ntawm qhov hluav taws xob tsis zoo OTDR teeb. Raws li cov txheej txheem (ANSI / TIA / EIA-455-8-2000), splice poob ntsuas nrog ib qho OTDR yuav tsum tau ua los ntawm ob qho kev taw qhia thiab qhov nruab nrab (los ntawm kev ntxiv nrog cov cim) rau qhov tseeb splice poob. Hauv qab no yog cov duab kab ntawm 'kev tau txais txiaj ntsig' thiab 'tshaj lij ploj' kev ntsuas; qhov cuam tshuam rau qhov tseeb splice poob yog qhov tsawg.

Nws yog ib qho tseem ceeb kom nco ntsoov tias qhov tseeb splice-poob yog qhov ntsuas splice-poob hauv ob qho kev qhia muab faib nrog ob.

Nyob rau uas tsis splice poob yog nyob?
Cov tsis, uas tswj kev poob hauv ib qho kev koom ua ke fiber ntau, tuaj yeem muab cais ua Intrinsic thiab Extrinsic tsis dhau.

Intrinsic Kev Txwv
Kev txiav txim siab lossis fiber ntau cuam tshuam tau txiav txim siab thaum tsim cov tshuaj fiber ntau thiab tsis tuaj yeem tswj tau los ntawm tus neeg ua splicing.
Hom Teb Inch (MFD) yog qhov tseem ceeb tshaj plaws intrinsic parameter. Kev pom zoo ntau dua kev tuaj yeem tuaj yeem pom qhov txawv txav hauv MFD qhov tseem ceeb. MFD yog tus xeeb ceem, uas piav qhia txog hom chaw tiaj chaw (thaj chaw ib puag ncig ntawm lub teeb) taug kev hauv cov kab hluav taws xob ntawm qhov muab ntab ntuag. Thaum cov fibers nrog sib txawv MFD qhov tseem ceeb yog spliced ua ke, MFD mismatch tshwm sim ntawm splice point. Nrog kev pab los ntawm cov qauv hauv qab no splice poob vim MFD mismatch tuaj yeem muab xam los ntawm MFDs (hauv Em) ntawm ob daim txiag.

MFD ntawm PMD-LITE fibers tuaj yeem sib txawv ntawm 8.8 txog 9.6 Em. Raws li ib qhov ntawm kab zauv saum toj no splice poob nruab nrab ntawm ob qhov huab MFD qhov tseem ceeb yog 0.035 dB.

Extrinsic Cov Qauv
Extrinsic, los yog splice cov txheej txheem muaj feem cuam tshuam yog cov ntxias los ntawm splicing txoj kev thiab cov txheej txheem. Cov txheej txheem sib cais cov txheej txheem suav nrog kev sib txuas tom qab thiab lub kaum sab xis, kis ntawm fiber ntau kawg thiab cov ntsiab lus deformation vim tsis zoo-ua kom cua sov & nias. Cov kev ntsuas sab nraud no tuaj yeem tswj tau / ua kom tsawg dua los ntawm kev txhim kho kev txawj ntawm tus neeg ua splicing thiab los ntawm cov lus txiav ua fiber ntau thiab faus cov voj voog.

Nws tau raug pom tias splice poob nruab nrab ntawm ob qho sib txig sib luag nrog tib MFD thiab ntsuas ntsuas yog qhov siab npaum li 0.04 dB. Qhov kev ploj dhau hwv vim yog nco tsis sib thooj thiab lwm yam txheej txheem cov txheej txheem. Daim duab 3 qhia tau hais tias fiber ntau qhov xwm txheej nrog rau ntau yam tsis tau tham nrog kev ntsuas splicing.

Lwm qhov tseem ceeb extrinsic parameter yog fiber ntau lub kaum ntse ntse. Kev npaj ua kom muaj fiber ntau kawg yog qhov pib theem tshaj plaws kom tau txais splice poob. Feem ntau lub kaum sab xis tsawg dua li ob lub degrees muab rau cov teb splice poob. Lub kaum sab xis yog vam khom rau kev mob ntawm cleaver thiab cleaver hniav. Raug lub kaum sab xis kawg ntawm qhov tshij - qhov nqaim zoo nyob ib puag ncig ib nrab. Daim duab 4 yog qhia qhov sib piv ntawm qhov tsis zoo thiab kev ntxuav zoo. Nws tau raug pom tias extrinsic tsis muaj peev xwm muab splice poob siab li 0.4 dB. Los ntawm kev tswj cov txheej txheem extrinsic tsis muaj, txais cov lus teb txaws tuaj yeem ua tiav.