1. Musiyano uripo pakati pematransceiver efiber optic emodhi imwe chete neakawanda
Dhayamita yepakati yefiber ye multimode i50~62.5μm, dhayamita yekunze yecladding i125μm, uye dhayamita yepakati yefiber ye single-mode i8.3μm, uye dhayamita yekunze yecladding i125μm. Mawavelength anoshanda efibers dze optical i0.85 μm yemawavelength mapfupi, 1.31 μm uye 1.55 μm yemawavelength marefu. Kurasikirwa kwefiber kunowanzo kudzikira newavelength, kurasikirwa kwe0.85μm i2.5dB/km, kurasikirwa kwe1.31μm i0.35dB/km, uye kurasikirwa kwe1.55μm i0.20dB/km, inova kurasikirwa kwakaderera kwefiber, wavelength ye1.65. Kurasikirwa pamusoro pe μm kunowanzo kuwedzera. Nekuda kwemhedzisiro yeOHˉ yekunyudzwa, kune peaks dzekurasikirwa dziri pakati pe0.90~1.30μm uye 1.34~1.52μm, uye idzi ranges mbiri hadzina kushandiswa zvizere. Kubva kuma1980, single-mode fibers dzave dzichishandiswa, uye kureba kwenguva refu kwe1.31 μm kwave kushandiswa kutanga.
Faibha yemhando dzakasiyana-siyana
Multimode fiber: Pakati pegirazi pakobvu (50 kana 62.5μm), iyo inogona kutumira chiedza nenzira dzakasiyana-siyana. Asi kupararira kwayo pakati pemodal kwakakura, izvo zvinoderedza frequency yekutumira masaini edhijitari, uye zvichave zvakakomba kana daro rikawedzera. Semuenzaniso: 600MB/KM fiber ine bandwidth ye300MB chete pa2KM. Saka, daro rekutumira fiber ye multimode ipfupi, kazhinji makiromita mashoma chete.
faibha yemhando imwe chete
Fiber yemhando imwe chete (Single Mode Fiber): Pakati pegirazi pakati payo patetepa zvikuru (dhayamita yepakati inowanzova 9 kana 10 μm), uye nzira imwe chete yechiedza inogona kutapurirwa. Nokudaro, kupararira kwayo pakati pemodal kudiki kwazvo, izvo zvakakodzera kutaurirana kure, asi kunewo kupararira kwezvinhu uye kupararira kwewaveguide, saka fiber yemhando imwe chete ine zvinodiwa zvakakwirira pahupamhi hwespectral uye kugadzikana kwechiedza, kureva kuti, upamhi hwespectral hunofanira kunge hwakatetepa uye hwakagadzikana. Iva wakanaka. Gare gare, zvakaonekwa kuti pahupamhi hwe1.31 μm, kupararira kwezvinhu uye kupararira kwewaveguide yefiber yemhando imwe chete zvakanaka uye zvakaipa, uye hukuru hwakafanana chaizvo. Izvi zvinoreva kuti pahupamhi hwe1.31 μm, kupararira kwese kwefiber yemhando imwe chete kuri zero. Kubva pahunhu hwekurasikirwa kwefiber, 1.31μm ingori hwindo rekurasikirwa kushoma kwefiber. Nenzira iyi, nzvimbo ye 1.31μm wavelength yave nzvimbo yakanaka yekukurukurirana ne optical fiber, uye ndiyo zvakare nzvimbo huru yekushanda ye optical fiber communication systems inoshanda. Ma parameter makuru e 1.31μm single-mode fiber anotsanangurwa neInternational Telecommunication Union ITU-T mukurudziro yeG652, saka fiber iyi inonziwo G652 fiber.
Matekinoroji emodhi imwe chete nemodhi dzakawanda anogadzirwa panguva imwe chete here? Ichokwadi here kuti iyo iri yepamusoro uye ine modhi dzakawanda ndiyo iri yepamusoro? Kazhinji, multi-mode inoshandiswa kumadaro mapfupi, uye single-mode chete ndiyo inoshandiswa kumadaro marefu, nekuti kutumira nekugamuchira mafiber emodhi dzakawanda Mudziyo wacho wakachipa zvikuru pane single mode.
Fiber yemhando imwe chete inoshandiswa pakutumira data kure, uye fiber yemhando dzakawanda inoshandiswa pakutumira data mukati meimba. Fiber yemhando imwe chete ndiyo inogona kushandiswa pakutumira data kure, asi multi-mode haishandiswi pakutumira data mukati meimba.
Kana mafiber e optical anoshandiswa mumaseva nemidziyo yekuchengetera ari single-mode kana multi-mode. Vazhinji vavo vanoshandisa multi-mode, nekuti ini ndinongoshanda mu communication optical fibers uye handinyatsonzwisisa nyaya iyi.
Ko mafiber e optical anofanira kushandiswa ari maviri here, uye pane michina yakaita se single-hole single-mode fiber signal converters here?
Ko fiber ye optical inofanira kushandiswa iri miviri miviri here? Ehe, muchikamu chechipiri chemubvunzo, uri kuda kutumira nekugamuchira chiedza pane fiber imwe chete ye optical here? Izvi zvinogoneka. Network ye optical fiber yeChina Telecom ye 1600G backbone yakaita seiyi.
Musiyano mukuru pakati pematransceivers efiber optic emhando imwe chete nematransceivers efiber optic emhando dzakasiyana-siyana idaro rekutumira. Transceiver yefiber optic yemhando dzakasiyana-siyana iratidziro yesignali ine ma node akawanda uye ine ma port akawanda mukushanda, saka daro rekutumira resignali ipfupi, asi zviri nyore, uye hazvina basa kushandisa kuvakwa kweintranet yemuno. Single fiber iratidziro ye node imwe chete, saka yakakodzera kutakura trunk lines refu uye inoumba kuvakwa kwenetwork yenzvimbo dzinoyambuka metropolitan.
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2. Maitiro ekusiyanisa ma transceivers e fiber optic e single-mode ne multi-mode
Dzimwe nguva, tinofanira kusimbisa rudzi rwetransceiver yefiber optic, saka tingaziva sei kana transceiver yefiber optic iri single-mode kana multi-mode?
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1. Siyanisa nemusoro une mhanza, bvisa chivharo cheguruva che fiber optic transceiver, wobva watarisa ruvara rwezvikamu zve interface mumusoro une mhanza. Rutivi rwemukati rwe single-mode TX neRX interfaces rwakafukidzwa ne ceramics chena, uye multi-mode interface yakatsvukira.
2. Siyanisa kubva kumuenzaniso: tarisa kana paine S na M mumuenzaniso, S zvinoreva single mode, M zvinoreva multi-mode.
3. Kana yakaiswa uye yakashandiswa, unogona kuona ruvara rwejumper yefiber, orenji ine multi-mode, yero ine single-mode
Nguva yekutumira: Gunyana-01-2022