1. Kusiyana pakati pe-single-mode uye multi-mode fiber optic transceivers
Iyo dhayamita yepakati ye multimode fiber ndeye 50 ~ 62.5μm, iyo dhayamita yekunze yekuvharisa ndeye 125μm, uye dhayamita yepakati yeimwe-modhi fiber ndeye 8.3μm, uye dhayamita rekunze rekupfekedza 125μm.Kushanda kwemawavelengths e-optical fibers ndeye 0.85 μm yenguva pfupi yavelengths, 1.31 μm uye 1.55 μm yenguva yakareba yavelengths.Iyo fiber kurasikirwa kazhinji inoderera neavelength, kurasikirwa kwe0.85μm i2.5dB/km, kurasikirwa kwe1.31μm ndeye 0.35dB/km, uye kurasikirwa kwe1.55μm ndeye 0.20dB/km, inova yakaderera kurasikirwa kwe fiber, iyo wavelength ye1.65 Kurasikirwa pamusoro pe μm kunowedzera kuwedzera.Nekuda kwekunyudzwa kweOHˉ, kune kurasikirwa kwepamusoro muhuwandu hwe0.90 ~ 1.30μm uye 1.34 ~ 1.52μm, uye aya maviri mazinga haashandiswe zvizere.Kubva ku1980s, single-mode fibers yave ichida kushandiswa, uye kureba kwakareba kwe1.31 μm kwakashandiswa kutanga.
Multimode fiber
Multimode fiber: Iyo yepakati girazi musimboti wakakora (50 kana 62.5μm), iyo inogona kufambisa mwenje mune dzakawanda modes.Asi iyo intermodal dispersion yakakura, iyo inodzikamisa kuwanda kwekutumira masaini edhijitari, uye ichave yakakomba nekuwedzera kwechinhambwe.Semuenzaniso: 600MB/KM faibha ine chete 300MB bandwidth pa2KM.Naizvozvo, chinhambwe chemultimode fiber transmission ipfupi, kazhinji makiromita mashoma.
single mode fiber
Single-mode fiber (Single Mode Fiber): Iyo yepakati girazi musimboti yakatetepa kwazvo (iyo yepakati dhayamita inowanzo 9 kana 10 μm), uye nzira imwe chete yechiedza inogona kufambiswa.Naizvozvo, kupararira kwayo kwepakati idiki kwazvo, iyo inokodzera kutaurirana kureba, asi kune zvakare kupararira kwezvinhu uye waveguide dispersion, saka iyo single-mode fiber ine yakakwira zvinodiwa pahupamhi hwekutarisa uye kugadzikana kwechiedza sosi, ndiko. , iyo spectral width inofanira kuva yakamanikana uye yakagadzikana.Iva akanaka.Gare gare, zvakaonekwa kuti pakureba kwe1.31 μm, kupararira kwezvinhu uye kupararira kwemafungu e-single-mode fiber yakanaka uye yakaipa, uye hukuru hwakafanana.Izvi zvinoreva kuti pawavelength ye1.31 μm, kupararira kwese kwe-single-mode fiber ndeye zero.Kubva pakurasikirwa kwehunhu hwefiber, 1.31μm ingori yakaderera-kurasikirwa hwindo refiber.Neiyi nzira, iyo 1.31μm wavelength dunhu rave rakanakira kushanda hwindo re optical fiber kutaurirana, uye zvakare ndiro guru rekushanda bhendi reanoshanda optical fiber kutaurirana masisitimu.Iwo makuru ma paramita e1.31μm akajairwa single-mode fiber anotemerwa neInternational Telecommunication Union ITU-T mukurudziro yeG652, saka fiber iyi inonzi zvakare G652 fiber.
Ko single-mode uye akawanda-modhi tekinoroji inogadzirwa panguva imwe chete?Ichokwadi here kuti iyo yakanyanyisa yepamusoro uye yakawanda-modhi yakanyanya kufambira mberi?Kazhinji, ma-multi-mode anoshandiswa kune mafupi marefu, uye chete-mode-mode inoshandiswa kure kure, nokuti kutapurirana uye kugamuchirwa kwe-multi-mode fibers Chigadzirwa chacho chakachipa zvikuru pane imwe nzira.
Single-mode fiber inoshandiswa kutapurirana kure-kure, uye multi-mode fiber inoshandiswa mukati memukati data kutapurirana.Imwe chete-modhi inogona kushandiswa kure-kure, asi akawanda-modhi haisati yanyatso shandiswa mukati memukati data kutapurirana.
Kunyangwe iyo optical fibers inoshandiswa mumaseva uye zvigadziriso zvekuchengetedza ndeye-single-mode kana yakawanda-mode Vazhinji vavo vanoshandisa multi-mode, nekuti ini ndinongobatanidzwa mukukurukurirana optical fibers uye haisi kunyatsojeka nezvenyaya iyi.
Ko mafiber optical anofanirwa kushandiswa ari maviri maviri, uye pane chero midziyo yakaita senge-hole single-mode fiber signal converters?
Ko iyo optical fiber inofanirwa kushandiswa iri maviri maviri here?Ehe, muhafu yechipiri yemubvunzo, unoreva kuendesa uye kugamuchira mwenje pane imwe optical fiber?Izvi zvinogoneka.China Telecom's 1600G backbone optical fiber network yakaita seizvi.
Musiyano unonyanya kukosha pakati pe-single-mode fiber optic transceivers uye multi-mode fiber optic transceivers ndiyo nzvimbo yekufambisa.I-multi-mode optical fiber transceiver i-multi-node uye yakawanda-port-port signal transmission mukushanda kwekushanda, saka chiratidzo chekufambisa chinhambwe chipfupi, asi chiri nyore, uye hazvidiwi kushandisa kuvaka intranet yeko. .Single faibha imwe chete node transmission, saka inokodzera kutapurirana mitsara yehunde kureba uye inoumba kuvakwa kwemuchinjiko-muguta network.
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2. Nzira yekusiyanisa sei single-mode uye multi-mode fiber optic transceivers
Dzimwe nguva, tinoda kusimbisa rudzi rwefiber optic transceiver, saka tingaziva sei kana fiber optic transceiver iri single-mode kana multi-mode?
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1. Siyanisa kubva pamhanza yemusoro, bvisa fiber optic transceiver bald head dust cap, uye tarisa ruvara rwezvikamu zvekubatanidza mumhanza yemusoro.Rutivi rwemukati rweiyo-single-modhi TX uye RX inopindirana yakaputirwa nechena ceramics, uye iyo yakawanda-modhi interface ndeye brown.
2. Kusiyanisa kubva pamuenzaniso: kazhinji ona kana pane S uye M mumuenzaniso, S inoreva imwe chete mode, M inoreva maitiro akawanda.
3. Kana yakaiswa uye yakashandiswa, unogona kuona ruvara rwefiber jumper, orenji ine multi-mode, yero is single-mode.
Nguva yekutumira: Sep-01-2022