Yas kho qhov muag fiber ntau (POF) yog ua los ntawm cov pob tshab polymers xws li polystyrene (PS), polymethyl methacrylate (PMMA), polycarbonate (PC) ua cov khoom tseem ceeb, thiab PMMA, fluoroplastics, thiab lwm yam raws li cov khoom siv tawv nqaij. Fiber zoo li (optical fibers). Cov ntaub ntawv sib txawv muaj cov khoom sib txawv ntawm lub teeb attenuation thiab cov ntawv thov kub. Yas kho qhov muag fiber ntau tuaj yeem siv tsis tau tsuas yog nyob rau hauv lub xeem 100-1000 meters ntawm lub network nkag, tab sis kuj nyob rau hauv ntau yam tsheb, dav hlau, thiab lwm yam tsheb. Nws yog ib qho zoo heev luv luv cov ntaub ntawv kis nruab nrab.
Yas Optical Fiber. Raws li xyoo 2014, cov fibers kho qhov muag siv hauv kev sib txuas lus kho qhov muag cables yog tsim los ntawm silica optical fibers, uas yog tsim los ntawm high-purity silica SiO2 nrog rau qhov tsim nyog tus nqi ntawm dopant. Nyob rau hauv xyoo tas los no, yas kho qhov muag fibers (POFs), uas yog optical fibers ua los ntawm lub teeb-transmission polymer, kuj tau maj mam tsim. Vim tias cov txheej txheem kev kos duab paub tab thiab yooj yim ntawm cov khoom siv polymer tuaj yeem siv tau, tus nqi qis, thiab nws kuj yog mos, muaj zog, loj hauv txoj kab uas hla (li 1 hli), thiab tsis tshua muaj splicing poob.
Muaj ob yam khoom tseem ceeb rau kev ua POF: ib qho yog polymethyl methacrylate polymer PMMA (Polymer Polymethylmethacrylate); Lwm qhov yog fluorinated polymers (Perfluorinated polymers)
Performance index editing tshaj tawm
1. Attenuation
Lub attenuation ntawm cov yas kho qhov muag fiber ntau yog nyob ntawm qhov tawg tawg thiab kev nqus tsis zoo ntawm cov khoom xaiv. Txhawm rau siv los ua kev sib txuas lus-qib yas kho qhov muag fiber ntau, ib qho ntawm cov kev cai yooj yim tshaj plaws yog qhov attenuation ntawm PMMA yas optical fiber yuav tsum tsawg, nyiam dua tsawg dua 180dB / km.
2. Bandwidth
Cov qib yas kho qhov muag fiber ntau yog cov khoom siv kho qhov muag nrog cov gradient faib ntawm qhov taw qhia qhov taw qhia, thiab nws qhov ntsuas qhov cuam tshuam maj mam txo qis los ntawm cov tub ntxhais mus rau cladding. Ntev npaum li qhov gradient refractive index faib tsim yog tsim nyog, cov teebmeem ntawm suppressing modal dispersion, tuav ib tug loj tus naj npawb aperture, thiab tswj lub broaden ntawm lub outgoing lub teeb yoj tus txheeb ze rau tib neeg lub teeb yoj yuav tau. Yog hais tias qhov refractive index faib yog tsim nyog, cov ntaub ntawv dispersion yog lub ntsiab tseem ceeb hauv kev txiav txim siab kis bandwidth. Ntev npaum li qhov txaus siab them rau cov khoom tawg thaum xaiv, nws muaj peev xwm ua tiav kom tau txais bandwidth ntawm ob peb Ghz·km.
3. Thaum tshav kub kub tsis kam
Qhov tseem ceeb tshaj plaws, qhov kub tsis kam ntawm cov yas optical fiber ntau yog txiav txim siab los ntawm nws cov khoom sib xyaw. Cov khoom muaj pes tsawg leeg nrog cov cua kub zoo txiav txim siab tias cov yas kho qhov muag fiber ntau muaj qhov ua kom sov zoo dua. Cov ntsuas ntsuas ntsuas qhov ntsuas kub ntawm cov ntaub ntawv suav nrog iav hloov pauv kub, Vicat softening point, thermal deformation kub thiab lwm yam ntsuas.
4. Kev sib txuas
Kev sib txuas lus yas kho qhov muag fibers feem ntau siv cov fibers kho qhov muag nrog ib txoj kab uas hla ntawm 1 hli, uas yog 8 mus rau 20 npaug ntawm silica optical fibers. Cov yas fiber ntau yog yooj yim dua los txuas dua li silica fiber ntau
Advantage Editing tshaj tawm
Yas optical fibers yog sib dua, softer, thiab ntau resistant rau kev puas tsuaj (kev co thiab dabtsi yog khoov). Yas optical fibers muaj zog tensile zoo heev, durability thiab me me hneev taw. Cov txiaj ntsig no ua rau kev ua tiav daim ntawv thov ntawm cov yas kho qhov muag fibers hauv tsheb tshwj xeeb yog qhov tseem ceeb. Sab hauv ntawm lub tsheb khoom kim heev muaj tsawg kawg yog ob peb kilometers ntawm tooj liab thiab cables, uas ua rau kom qhov hnyav thiab tus nqi ntau. Ib yam mus rau dav hlau, tsheb ciav hlau, thiab tag nrho lwm yam kev thauj mus los.
Vim yog txoj kab uas hla loj thiab cov lej aperture ntawm cov yas optical fiber ntau, lub teeb kis tau tus mob loj. Yas kho qhov muag fiber ntau muaj peev xwm bandwidth ntau dua li tooj liab-raws li kev sib kis xov xwm (twisted khub thiab coaxial cable). Qhov siab dua qhov zaus ntawm kev sib kis, tus nqi qis dua ntawm kev siv cov yas kho qhov muag fibers.
Txiav, routing, bonding, polishing thiab lwm yam kev ua ntawm cov yas optical fibers yog ib qho yooj yim. Vim yog txoj kab uas hla loj dua, cov khoom siv kho qhov muag fiber ntau thiab kev sib txuas rau cov khoom siv, lub teeb pom kev zoo, lub teeb pom kev, thiab lwm yam yog qhov yooj yim thiab tus nqi qis, thiab cov neeg tsis yog cov kws tshaj lij tuaj yeem ua cov haujlwm no. Kev npaj kev sib txuas ntawm cov yas kho qhov muag yuav siv sijhawm tsis pub dhau 1 feeb thiab tsis tas yuav muaj cov cuab yeej tshwj xeeb. Txawm tias cov txiab yooj yim tshaj plaws tuaj yeem siv los txiav cov yas kho qhov muag. Cov yas kho qhov muag fiber ntau transceiver module siv lub teeb liab nrog lub wavelength ntawm 650nm, uas muaj kev nyab xeeb heev, thiab cov neeg siv tau yooj yim txiav txim siab seb qhov kev sib txuas ntawm cov khoom siv fiber ntau puas ua tiav. Tsis tas li ntawd, kev sib txuas ntawm cov yas fiber ntau optic tsis rhiab rau cov plua plav thiab cov khib nyiab ntawm lub ntsej muag kawg.
Yas optical fibers tsis tawm hluav taws xob thiab muaj kev tiv thaiv tag nrho rau electromagnetic thiab xov tooj cua zaus cuam tshuam thiab suab nrov. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau kev yees duab thiab suab streaming, vim nws paub meej tias cov kev cuam tshuam thiab suab nrov cuam tshuam rau qhov zoo ntawm cov duab thiab kev pabcuam. Yas kho qhov muag fibers tuaj yeem muab tso rau ntawm ib sab hauv tib lub raj lossis hauv tib lub hlua khi li tooj liab. Yas optical fibers tsis tsim suab nrov thiab tsis ua rau tsis zoo rau cov yeeb nkab network tam sim no.
Tus nqi ntawm POF systems yog tsawg. Nws tau hais tias tus nqi qis dua $ 20 rau ib qho kev sib txuas rau cov neeg siv khoom siv hluav taws xob hauv tsev, kev sib txuas hauv tsev, thiab tsheb nrog rau lub tso suab, DVDs, VCRs, thiab ntau dua. Yog li cov khoom siv no muaj nyob hauv khw muag khoom.
Cov ntaub ntawv xa mus los ntawm cov yas kho qhov muag fibers yog tsis zoo li yuav eavesdropped, yog li yas kho qhov muag fibers yog heev haum rau tej lub sij hawm uas muaj kev ruaj ntseg siab.
Thaum silica fiber ntau yog siv rau kev sib txuas lus ntev ntawm lub cev thiab fiber ntau rau hauv tsev, cov yas fiber ntau tau raug hu ua "nrov" fiber ntau, hais txog tus nqi qis ntawm cov yas fiber ntau, kev sib txuas, thiab kev teeb tsa. Nyob rau hauv tag nrho cov kev daws teeb meem ntawm fiber-rau-lub tsev thiab fiber-to-desktop, yas kho qhov muag fiber yog cov ntxiv ntawm silica fiber, uas tuaj yeem sib koom ua ke tsim ib qho kev sib txuas ntawm txhua qhov kho qhov muag.
Piv nrog silica fiber, POF muaj qhov zoo hauv qab no: tsis tshua muaj modulus, loj core inch ({{0}}}3-1.0mm), yooj yim POF connector siv tau rau splicing , txawm tias qhov chaw kho qhov muag fiber ntau splicing qhov chaw ua haujlwm ua rau 30μm sib txawv, nws yuav tsis cuam tshuam rau Coupling poob; Cov lej loj aperture (txog NA0.5), lub teeb tau txais lub kaum ntse ntse tuaj yeem ncav cuag 60 degree, thaum lub quartz fiber tsuas yog 16 degree, pheej yig LEDs tuaj yeem siv, thiab kev sib txuas ua haujlwm siab; yooj yooj yim, yooj yim rau txheej txheem thiab siv; nyob rau hauv cheeb tsam pom lub teeb Muaj lub qhov rais poob qis; lub teeb nyhav; tus nqi qis thiab cov nqi ua haujlwm.
Piv nrog rau lwm yam kev sib kis xov xwm hauv cheeb tsam hauv cheeb tsam network, POF network kuj muaj qhov zoo: POF tsis rhiab rau electromagnetic cuam tshuam, thiab tsis tawm hluav taws xob, lub attenuation nyob rau hauv cov ntaub ntawv sib txawv tus nqi yog tas mus li, qhov me ntsis yuam kev yog kwv yees, thiab nws tuaj yeem siv rau hauv qhov chaw muaj suab nrov. Nws qhov ntev ntev tuaj yeem txo qhov yuav tsum tau ua rau kev tiv thaiv kev tiv thaiv hauv kev sib koom tsim, yog li tus nqi ntawm kev tsim lub network yog qis dua, thiab lwm yam.