Npaum Li Cas Koj Paub Txog Yas Hniav Fibers?
Yas fiber ntau, los yog POF, tau overshadowed nyob rau hauv lub xeem xyoo caum los ntawm kev vam meej iav fiber ntau. Vim li ntawd, POF tau raug txuas mus rau qis qis thiab luv nrim daim ntaub ntawv. Tsis ntev los no cov kev tsim kho tshiab thiab kev tshwm sim ntawm ib daim ntawv thov killer nyob rau hauv kev lag luam automotive tau tsim POF rau lub limelight ntawm tus nqi qis lwm yam rau cov iav fiber ntau los yog tooj liab nyob nruab nrab thiab tsawg ntawm 10 gbps. Daim ntawv no tshuaj xyuas cov keeb kwm ntawm POF, cov kev txhim kho uas tsim tau lub tswv yim hais txog POF, thiab cov ntawv sau npe uas yog POF rau hauv cov hoob kawm. Tsis tas li ntawd, POF cov tshuab ua pov thawj zoo ib yam khoom muaj nuj nqis rau "Txwv tsis pub yees".
Thaum tib neeg hnov ntawm qhov muag fibers, lawv tam sim ntawd xav txog iav. Tsawg tus neeg, nrog rau cov tub txawg hauv kev ua lag luam, paub txog cov yas pas fibers (POFs), uas txheeb cov neeg ua los ntawm iav. Vim tias cov iav fibers muaj qee qhov zoo, lawv tau muaj kev ua lag luam, thaum POFs tseem nyob hauv keeb kwm yav dhau los. Cov kev lag luam tsis ntev los no hauv technology thiab cov kev siv, txawm li cas los xij, tau hlawv cov duab ntawm POFs, thiab lawv nrhiav tau ib lub lag luam loj nrog technology tuam txhab thoob ntiaj teb. Niaj hnub no, ib tug tshiab enthusiasm permeates lub plastics sab ntawm optical fibers. Daim ntawv txhim kho txoj kev loj hlob yog tias cov yas siv fais fab tuag, daim ntawv sau tawm, thiab kev tsim ua haujlwm.
Cov POFs sib tw nrog cov xaim tooj liab, coaxial cables, iav optical fibers, thiab wireless, thiab lawv xav tau lub transmitter, receiver, cables, thiab connectors zoo ib yam li cov neeg siv rau hauv iav optical-fiber links. Cov ntaub ntawv tsim POFs tawm ntawm cov ntaub ntawv yas xws li polystyrene, polycarbonates, thiab polymethyl methacrylate (PMMA). Cov ntaub ntawv no muaj cov kis kab mob hauv qhov pom ntawm qhov pom (520-780 nm).
Txawm li cas los xij, lub teeb kis ntawm lub wavelengths siab heev, xws li ntawm 150 dB / km rau PMMA mus rau 1,000 dB / km rau polystyrene thiab polycarbonates. Cov puav pheej no feem ntau muaj kev tiv thaiv cov yas fibers rau hauv kev sib tw tiv thaiv cov iav zoo-ntse iav, uas muaj kev piam sij ntawm 0.2 dB / km rau ib hom fiber ntau thiab tsawg dua 3 dB / km rau ntau lub fibers. Li no, cov yas fibers tau raug txuas mus rau cov kev siv luv-luv, feem ntau ntawm ob peb puas meters lossis tsawg dua, piv nrog rau pua pua kilometers rau khob. Txawm li cas los xij, POFs tau pom ntau yam kev siv hauv chaw xws li kev tswj lag luam, tsheb, lub tshuab ua kom pom kev kub siab, cov paib, qhov muag teeb (xws li teeb pom kev kos duab ntawm cov duab kos hauv cov tsev khaws ntaub ntawv), thiab cov ntaub ntawv luv luv. Yeej, POF daim ntawv teev npe sib faib ua cov ntaub ntawv-kev sib txuas lus thiab cov ntaub ntawv tsis yog (piv txwv thiab cov cim, piv txwv). Niaj hnub no, kev cia siab rau hauv POF ntau dua ntawm nws txoj kev siv cov ntaub ntawv.
Cov txiaj ntsim ntawm POF yog dab tsi? Qee cov neeg pom POF systems muab kev pab cuam piv rau cov iav fiber los yog tooj liab hlau, uas muaj xws li:
• Cheebtsam qis dua thiab tsis kim tshaj
• hnyav nyhav
• ua haujlwm hauv qhov pom
• muaj lub zog yooj yim dua, thiab muaj peev xwm ua kom khoov siab, poob siab thiab kev chim
• kev tiv thaiv rau electromagnetic cuam tshuam (EMI)
• yooj yim hauv kev tuav thiab txuas
• Siv cov khoom siv yooj yim thiab pheej yig
• kev nyab xeeb dua qhov iav fibers los yog fiber ntau uas yuav tsum muaj lub teeb ci laser
• Cov chaw xa khoom tawm yuav tsum muaj hwj chim dua cov tooj liab
FOCC yog ib qho fiber ntau optic cable qhov kev pabcuam uas koj tuaj yeem siv cov yas fiber ntau qhov haum uas haum rau koj cov kev xav tau. Nws muab ob qho yooj yim thiab duplex yas kho qhov muag fibers. Tus qauv xim yog xim dub, thiab lwm yam xim muaj thaum thov.
