To taub cov wavelengths ntawm 850nm, 1310nm thiab 1550nm hauv optical fiber

To taub cov wavelengths ntawm 850nm, 1310nm thiab 1550nm hauv optical fiber

Lub teeb yog txhais los ntawm nws qhov wavelength, thiab hauv kev sib txuas lus fiber optic, lub teeb siv yog nyob rau hauv thaj chaw infrared, qhov twg qhov wavelength ntawm lub teeb loj dua li ntawm lub teeb pom kev. Hauv kev sib txuas lus fiber optic, qhov wavelength ib txwm yog 800 txog 1600nm, thiab qhov wavelengths feem ntau siv yog 850nm, 1310nm thiab 1550nm.

Duab los ntawm:

Thaum fluxlight xaiv qhov wavelength ntawm kev xa xov, nws feem ntau xav txog qhov poob ntawm fiber thiab kev tawg. Lub hom phiaj yog xa cov ntaub ntawv ntau tshaj plaws nrog qhov poob tsawg tshaj plaws ntawm fiber hla qhov deb ntev tshaj plaws. Qhov poob ntawm lub zog teeb liab thaum lub sijhawm xa xov yog attenuation. Qhov attenuation muaj feem cuam tshuam nrog qhov ntev ntawm waveform, qhov ntev ntawm waveform, qhov me dua qhov attenuation. Lub teeb siv hauv fiber muaj qhov wavelength ntev dua ntawm 850, 1310, 1550nm, yog li qhov attenuation ntawm fiber tsawg dua, uas kuj ua rau muaj qhov poob fiber tsawg dua. Thiab peb qhov wavelengths no muaj qhov nqus zero, uas yog qhov tsim nyog tshaj plaws rau kev xa xov hauv cov fibers optical ua cov chaw muaj teeb pom kev zoo.

Duab los ntawm:

Hauv kev sib txuas lus fiber ntau, fiber ntau tuaj yeem muab faib ua ib hom thiab ntau hom. Thaj chaw wavelength 850nm feem ntau yog ntau hom kev sib txuas lus fiber ntau, 1550nm yog ib hom, thiab 1310nm muaj ob hom ib hom thiab ntau hom. Xa mus rau ITU-T, qhov attenuation ntawm 1310nm raug pom zoo kom ≤0.4dB / km, thiab qhov attenuation ntawm 1550nm yog ≤0.3dB / km. Thiab qhov poob ntawm 850nm yog 2.5dB / km. Kev poob fiber feem ntau txo qis thaum qhov wavelength nce. Qhov nruab nrab wavelength ntawm 1550 nm nyob ib ncig ntawm C-band (1525-1565nm) feem ntau hu ua lub qhov rais xoom poob, uas txhais tau tias qhov attenuation ntawm quartz fiber yog qhov tsawg tshaj plaws ntawm qhov wavelength no.

Beijing Rofea Optoelectronics Co., Ltd. nyob hauv Suav teb "Silicon Valley" - Beijing Zhongguancun, yog ib lub tuam txhab high-tech uas mob siab rau kev pabcuam rau cov tsev kawm ntawv tshawb fawb hauv tsev thiab txawv teb chaws, cov tsev kawm ntawv tshawb fawb, cov tsev kawm qib siab thiab cov neeg ua haujlwm tshawb fawb txog kev lag luam. Peb lub tuam txhab feem ntau koom nrog kev tshawb fawb thiab kev txhim kho ywj pheej, tsim qauv, tsim khoom, muag khoom ntawm cov khoom optoelectronic, thiab muab cov kev daws teeb meem tshiab thiab kev pabcuam tus kheej rau cov kws tshawb fawb thiab cov kws ua haujlwm hauv kev lag luam. Tom qab ntau xyoo ntawm kev tsim kho tshiab ywj pheej, nws tau tsim cov khoom lag luam photoelectric nplua nuj thiab zoo meej, uas siv dav hauv nroog, tub rog, kev thauj mus los, hluav taws xob, nyiaj txiag, kev kawm, kev kho mob thiab lwm yam lag luam.