Muag Zoo Integrated Circuit HFBR-772BWZ Hauv Tshuag

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Cov ntaub ntawv & Media

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Cov peev txheej ntxiv

Fiber optics, kuj spelled fiber optics, lubkev kawmntawmkis taucov ntaub ntawv, suab, thiab cov duab los ntawm txoj kev ntawm lub teeb los ntawm nyias, pob tshab fibers.Hauvkev sib txuas lus, fiber optic technology tau zoo hloovtooj liabkab innyob deb xov toojkab, thiab nws yog siv los txuaskhoos phis tawjhauvhauv zos networks.Fiber ntauopticstseem yog lub hauv paus ntawm cov fiberscopes siv los tshuaj xyuas qhov chaw hauv lub cev (endoscopy) lossis tshuaj xyuas cov khoom siv sab hauv ntawm cov khoom tsim khoom.

Qhov nruab nrab nruab nrab ntawm fiber ntau optics yog cov plaub hau nyias fiber ntau uas qee zaum ua los ntawmyastab sis feem ntau ntawmiav.Ib tug raug iav optical fiber muaj ib txoj kab uas hla ntawm 125 micrometers (μm), los yog 0.125 hli (0.005 nti).Qhov no yog tiag tiag txoj kab uas hla ntawm cladding, los yog txheej reflecting txheej.Cov tub ntxhais, lossis sab hauv lub tog raj kheej xa tawm, tuaj yeem muaj txoj kab uas hla me me li 10ib m.Los ntawm cov txheej txheem hu uatag nrho internal reflection,teebrays beamed rau hauv fiber ntaunthuav tawmnyob rau hauv lub hauv paus rau kev ncua deb nrog remarkably me ntsis attenuation, los yog txo nyob rau hauv kev siv.Qhov degree ntawm attenuation tshaj qhov deb txawv raws li lub wavelength ntawm lub teeb thiab mus rau qhovmuaj pes tsawg leegntawm fiber.

Thaum cov iav fibers ntawm cov tub ntxhais / cladding tsim tau qhia nyob rau hauv thaum ntxov 1950s, lub xub ntiag ntawm impurities txwv lawv txoj hauj lwm rau luv luv ntev txaus rau endoscopy.Xyoo 1966, hluav taws xob engineersCharles Kaothiab George Hockham, ua haujlwm hauv tebchaws Askiv, pom zoo siv fibers raukev sib txuas lus, thiab nyob rau hauv ob xyoo caumsilicaiav fibers tau raug tsim nrog txaus purity uasinfraredLub teeb ci ntsa iab tuaj yeem hla lawv mus txog 100 km (60 mais) lossis ntau dua yam tsis tas yuav tsum tau txhawb nqa los ntawm cov neeg rov ua dua.Nyob rau hauv 2009 Kao twb muab tsub lubNobel nqi zoghauv Physics rau nws txoj haujlwm.Yas fibers, feem ntau yog ua los ntawm polymethylmethacrylate,polystyrene, los yogpolycarbonate, yog pheej yig dua los tsim thiab hloov pauv ntau dua li cov iav fibers, tab sis lawv qhov kev txo qis ntau dua ntawm lub teeb txwv lawv siv rau ntau qhov sib txuas luv dua hauv cov tsev lossistsheb.

Optical telecommunication feem ntau yog ua nroginfraredLub teeb nyob rau hauv lub wavelength ranges ntawm 0.8-0.9 μm los yog 1.3-1.6 μm - wavelengths uas muaj txiaj ntsig tsim los ntawmteeb-emitting diodeslos yogsemiconductor lasersthiab qhov ntawd raug kev txom nyem tsawg kawg nkaus hauv cov iav fibers.Fiberscope soj ntsuam hauv endoscopy los yog kev lag luam yog ua nyob rau hauv lub pom wavelengths, ib pob ntawm fibers siv rauteeb pom kevthaj chaw kuaj nrog lub teeb thiab lwm lub pob ua haujlwm raws li elongatedlensrau xa cov duab mus rau lubtib neeg qhov muaglos yog lub koob yees duab yees duab.