A Catv Optical Transmitteryog ib qho cuab yeej siv nyob rau hauvCable TV (Catv) Tes hauj lwmTxhawm rau hloov hluav taws xob RF (xov tooj cua ntev) taw qhia rau cov cim kho qhov muag rau kev sib kis tau cov kab ke muaj optic cables. Cov thev naus laus zis no yog qhov tseem ceeb rau niaj hnub cable TV ntawv faib cov tshuab, ua kom ntev-deb, muaj teeb meem zoo teeb liab nrog kev poob qis thiab cuam tshuam.
Nws ua haujlwm li cas:
RF lub teeb liab tawm tswv yim:Lub tshuab xa tawm tau txais RF cim los ntawm Cable TV nyob rau hauv Cable TV, uas suav nrog ntau lub xov xwm TV thiab cov ntaub ntawv teev npe.
Laser hloov:RF teeb liab modulates ib high-fais fab laser, feem ntau sivKev Ntsuas Ncaj Nrig(rau cov ntawv thov txo nqi) lossisKev Tawm Tsam Sab Nraud(rau kev ua tau zoo dua thiab qis dua).
Cov teeb liab tawm tshiab:Cov teeb meem Laser Laser Lub teeb liab kho qhov muag, uas kis tau los ntawm cov teeb meem hluav taws xob muaj khoos phis tawm rau cov khoom xa tawm lossis cov neeg kho qhov muag.
Kev faib khoom faib:Ntawm qhov tau txais kawg, cov cim kho qhov muag tau hloov kho rov qab mus rau hauv RF cim thiab faib rau cov neeg siv sib xyaw kom dhau.
Cov Nta Tseem Ceeb:
Cov Zog Hluav Taws Xob:Feem ntau ua haujlwm ntawm1310 nmlossis1550 nmwavelengths rau cov khoom siv fiber ntau.
Tsawg distortion & suab nrov:Kev sivDFB (Muab cov lus faib tawm) laserslossisEdfa (EDBium-doped fiber ntau tshaj plawslos txhim kho kev ua tau zoo.
Kev sib kis tau ntev:Kev siv kho qhov muag kho qhov muag txo cov teeb meem kev teeb meem, cia kev sib kis tau ntau tshaj li kaum lossis ntau pua mais.
Ntau lub teeb liab kev txhawb nqa:Tuaj yeem kis Analog TV, TV TV, Internet, thiab kev pabcuam kev pabcuam ib txhij.
Cov Ntawv Thov:
Catv Tes hauj lwm:Xa Cable TV tsom teeb ntawm fiber-optic infrastructure.
Ftth (Fiber rau hauv tsev):Siv nyob rau hauv hybrid fiber ntau-coaxial (hfc) tes hauj lwm rau qib nrawm-ceev.
IPTV & Cov Ntaub Ntawv Kis:Txhawb cov yeeb yaj kiab digital thiab kev pab cuam hauv Is Taws Nem siab.
