Lub hauv paus ntsiab lus ntawm kev sib txuas lus fiber ntau yog: ntawm qhov kawg xa tawm, cov ntaub ntawv xa mus (xws li lub suab) yuav tsum tau hloov mus rau hauv lub teeb liab hluav taws xob ua ntej, thiab tom qab ntawd hloov mus rau lub teeb hluav taws xob tawm los ntawm lub laser, kom qhov kev siv ntawm lub teeb hloov pauv. nrog rau qhov amplitude (frequency) ntawm lub teeb liab hluav taws xob. Nws raug xa tawm los ntawm fiber ntau optical; ntawm qhov kawg tau txais, tus ntes hloov cov teeb liab kho qhov muag rau hauv lub teeb liab hluav taws xob tom qab tau txais nws, thiab rov qab kho cov ntaub ntawv qub tom qab demodulation.
Optical fiber kev sib txuas lus yog txoj kev xa xov tseem ceeb ntawm kev sib txuas lus niaj hnub. Nws muaj keeb kwm ntawm tsuas yog kaum lossis nees nkaum xyoo thiab tau ntsib peb tiam: luv wavelength multimode optical fiber, ntev wavelength multimode optical fiber, thiab ntev wavelength single-mode optical fiber.
Kev siv cov kev sib txuas lus kho qhov muag fiber ntau yog qhov hloov pauv loj hauv keeb kwm ntawm kev sib txuas lus. Ntau tshaj 20 lub teb chaws suav nrog Tebchaws Meskas, Nyiv, Tebchaws Askiv, thiab Fabkis tau tshaj tawm tias lawv yuav tsis tsim cov kab sib txuas lus ntxiv lawm thiab tau cog lus rau kev txhim kho kev sib txuas lus fiber ntau. Tuam Tshoj' kev sib txuas lus fiber ntau optical tau nkag mus rau theem ua tau zoo.
Qhov tseem ceeb ntawm kev sib txuas lus optical network yog nruab nrog cov khoom siv kho qhov muag. Cov cuab yeej no plays ntau lub luag haujlwm.
1. Kev hloov pauv teeb liab (xa teeb liab): Hloov cov teeb liab hluav taws xob rau hauv cov teeb liab kho qhov muag.
2. Teeb liab multiplexing: converge ntau lub teeb liab nqaim rau hauv lub teeb liab dav.
3. Teeb liab relay: kis tau tus mob ntev, relay teeb liab midway.
4. Kev taw qhia teeb liab: hloov cov kev taw qhia kis ntawm lub teeb liab.
5. Teeb liab demultiplexing: Decompose lub multiplexed teeb liab mus rau hauv lub qub teeb liab.
6. Cov teeb liab hloov dua siab tshiab (tau txais teeb liab): Hloov cov teeb liab kho qhov muag rau hauv cov teeb liab hluav taws xob.
Cov khoom siv kho qhov muag, suav nrog cov khoom siv kho qhov muag, G.657 fiber ntau rau FTTx, G.656 fiber ntau rau broadband ntev-ntev high-speed loj-muaj peev xwm fiber ntau kis tau tus mob, photonic siv lead ua fiber, tsis tshua muaj ntiaj teb-doped fiber ntau (xws li ytterbium-doped fiber, erbium -doped fiber ntau, thulium-doped fiber ntau, thiab lwm yam), Laser zog kis tau tus mob fiber ntau, thiab hom tshiab fiber ntau nrog qee cov khoom tshwj xeeb, suav nrog cov yas fiber ntau, polymer fiber, thiab lwm yam.
Optical fiber access equipment, passive optical network (PON), optical line terminal (OLT), optical network unit (ONU), wavelength division multiplexer, thiab lwm yam.
