Fiber optic cables yog cov pob txha ntawm cov kev sib txuas lus niaj hnub no, ua lub luag haujlwm tseem ceeb hauv txhua yam ntawm tsev neeg broadband mus rau cov chaw zov me nyuam, kev sib txuas lus hauv nkoj, thiab kev xa hluav taws xob. Cov cables no txhawb kev loj hlob sai ntawm cov ntaub ntawv hauv zej zog los ntawm kev ua kom muaj kev kub ceev, txhim khu kev qha cov ntaub ntawv xa mus ntev. Kab lus no delves rau hauv cov hauv paus ntsiab lus, hom, tsim cov txheej txheem, thiab yav tom ntej tiam sis ntawm fiber optic cables.
Lub hauv paus ntsiab lus ntawm Fiber Optic Cables
Fiber optics siv lub teeb teeb liab los xa cov ntaub ntawv. Lub hauv paus ntawm fiber ntau optic cable yog ua los ntawm ultra-nyias iav los yog yas fibers, uas xa lub teeb los ntawm tag nrho cov sab hauv xav txog, ua kom ntev-ntev, tsis tshua muaj attenuation cov ntaub ntawv kis tau tus mob. Cov qauv hauv paus muaj peb yam tseem ceeb:
Core:Lub hauv paus cheeb tsam uas lub teeb teeb liab mus.
Cladding:Ib puag ncig txheej uas qhia txog lub teeb rov qab rau hauv lub hauv paus, kom ntseeg tau tias muaj teeb meem.
Txheej:Ib txheej txheej tiv thaiv uas tiv thaiv cov fiber ntau tiv thaiv lub cev puas tsuaj.
Fiber optic cables tau ntxiv dag zog nrog cov txheej txheem tiv thaiv kom txhim khu kev ruaj ntseg, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig nyuaj.
Hom Fiber Optic Cables thiab lawv daim ntawv thov
Fiber optic cables tuaj yeem categorized raws li lawv cov qauv thiab npaj siv:
(1) Sab hauv Cables
Nta: Saj zawg zog, yooj yim khoov, tsim rau kev teeb tsa sab hauv tsev.
Daim Ntawv Thov: Kev tsim vaj tse, kev sib txuas sab hauv hauv cov chaw khaws ntaub ntawv.
Piv txwv li: GJFJV, GJPFJH.
(2) Sab nraum zoov Cables
Nta: Huab cua-resistant, armored rau txhim khu kev tiv thaiv txhua yam, feem ntau siv nyob rau hauv hnyav ib puag ncig.
Daim Ntawv Thov: Kev sib txuas lus ntev-ntev, thaj chaw hauv nroog loj (txiv neej), thiab FTTH (Fiber to the Home) cov haujlwm.
Piv txwv li: GYTS, GYTA53, ADSS.
(3) Tshwj xeeb Cables
Nta: Tsim los nrog cov khoom tshwj xeeb xws li kub-kub, tiv thaiv nas, lossis nplaim hluav taws.
Daim ntawv thov: submarine kev sib txuas lus, kab hluav taws xob overhead, roj thiab roj kav dej saib xyuas.
Piv txwv li: OPGW (Optical Ground Wire), hluav taws kub-resistant cables.
Kev tsim cov txheej txheem ntawm Fiber Optic Cables
Kev tsim cov fiber ntau optic cables suav nrog ntau cov kauj ruam meej, txhua qhov yuav tsum tau tswj xyuas kom zoo:
Fiber Drawing:Nyob rau hauv ib qho chaw huv si, preform rods yog rhuab thiab kos rau hauv ultra-fine fibers, uas yog ces coated thiab kho.
Loose Tube Tsim:Ntau cov fibers tau muab tso rau hauv ib lub raj xoob uas muaj dej thaiv cov gel kom tiv thaiv kom tsis txhob ya raws.
Cable Core Stranding:Cov raj xoob yog tso tseg nyob ib ncig ntawm lub hauv paus muaj zog cov tswv cuab, tsim cov tub ntxhais compact cable.
Armoring thiab Sheathing:Hlau daim kab xev armor thiab polyethylene (PE) sheath yog siv los txhim kho txhua yam muaj zog thiab ib puag ncig tiv thaiv.
Yav tom ntej Trends nyob rau hauv Fiber Optic Technology
Nrog rau kev loj hlob ntawm 5G, Is Taws Nem ntawm Yam (IoT), thiab kev loj hlob ntawm cov ntaub ntawv thoob ntiaj teb, fiber optic cables tau teeb tsa los ua lub luag haujlwm tseem ceeb dua yav tom ntej. Nov yog qee qhov kev nthuav tawm tshiab:
(1) Kev nrawm dua thiab qis dua
Kev nce qib hauv cov ntaub ntawv fiber ntau thiab txheej txheej thev naus laus zis tau ua rau cov fibers tsis tshua muaj qis, ua kom cov ntaub ntawv ceev dua. Lub hom phiaj yog ntawm ultra-high bandwidth thiab low-attenuation fibers rau lwm tiam neeg.
(2) All-Optical Networks
All-optical networks (AON) leverage optical switching thev naus laus zis los pab kom cov teeb liab kis tsis tau hluav taws xob, txo qis latency thiab txhim kho kev sib txuas lus.
(3) Submarine Cables thiab Space-based Internet
Raws li cov ntaub ntawv thoob ntiaj teb xav tau nce, submarine cable systems yuav txuas ntxiv. Tsis tas li ntawd, fiber optic thev naus laus zis yuav txhawb nqa satellite-raws li internet, muab kev kub ceev broadband nkag mus thoob plaws ntiaj teb.