Maererano neITU-T mitemo, kutaurirana optical fibers yakakamurwa kuva 7 zvikamu: G.651 kusvika G.657.Ndeupi musiyano uripo pakati pavo?
1, G.651 faibha
G.651 is Multi-mode fiber, uye G.652 kusvika G.657 ose ari single-mode fibers.
Iyo optical fiber inoumbwa neiyo core, cladding uye coating, sezvakaratidzwa mumufananidzo 1.
Kazhinji iyo dhayamita yekuvhara ndeye 125um, coating layer (mushure mekupenda) i250um;uye iyo dhayamita yepakati hapana ine kukosha kwakamira, nekuti mutsauko wepakati dhayamita uchachinja iyo optical fiber transmission performance muhombe.
Mufananidzo 1. Fiber chimiro
Kazhinji iyo yepakati dhayamita yemultimode fiber kubva pa50um kusvika 100um.Iko kutapurirana kwefiber kunovandudzwa zvakanyanya kana iyo dhayamita yepakati ikaita diki.Sezvakaratidzwa mumufananidzo 2.
Mufananidzo 2. Multi mode transmission
Imwe chete nzira yekufambisa kana iyo dhayamita yepakati ye fiber idiki pane imwe kukosha, sezvakaratidzwa muFigure 3, inova imwe-modhi fiber.
Mufananidzo 3. Single mode transmission
2, G.652 Fiber
G.652 optical fiber ndiyo inonyanya kushandiswa optical fiber.Parizvino, kuwedzera kune fiber kumba (FTTH) kumba optical cable, iyo optical fiber inoshandiswa munzvimbo yakareba uye metropolitan inenge yose G.652 optical fiber. vatengi vanoodha rudzi urwu zvakanyanya kubva kuHonwy.
Attenuation ndechimwe chezvinhu zvakakosha izvo zvinokanganisa kureba kwekutapurirana kwe optical fiber.Iyo attenuation coefficient ye optical fiber inoenderana newavelength.Sezvinoratidzwa mumufananidzo 4. Inogona kuonekwa kubva pamufananidzo kuti kuderedzwa kwefiber pa 1310nm uye 1550nm inenge iduku, saka 1310nm uye 1550nm yakave iyo inonyanya kushandiswa mahwindo ewavelength kune single-mode fibers.
Mufananidzo 4. Attenuation coefficient ye single mode fiber
3, G.653 Fiber
Mushure mekukurumidza kwe optical communication system yakawedzera kuwedzera, kutapurirana kwechiratidzo kunotanga kukanganiswa nefiber dispersion.Dispersion inoreva kukanganiswa kwechiratidzo (kuwedzerwa kwepulse) kunokonzerwa neakasiyana ma frequency ezvikamu kana akasiyana modhi zvikamu zvechiratidzo (pulse) inopararira nekumhanya kwakasiyana uye kusvika kune imwe chinhambwe, sezvakaratidzwa mumufananidzo 5.
Mufananidzo 5. Fiber dispersion
Iyo yekuparadzira coefficient ye optical fiber inoenderanawo newavelength, sezvakaratidzwa muMufananidzo 6. Single-mode fiber ine diki diki yekuvharisa pa1550 nm, asi iyo yekuparadzira coefficient pane iyi wavelength yakakura.Saka vanhu vakagadzira imwe-modhi fiber ine dispersion coefficient ye0 pa1550nm.Iyi fiber inoita seyakanaka iG.653.
Mufananidzo 6. The dispersion coefficient yeG.652 uye G.653
Zvisinei, kupararira kwefiber optical ndeye 0 asi haina kukodzera kushandiswa kwemawavelength division (WDM) maitiro, saka G.653 optical fiber yakakurumidza kubviswa.
4, G.654 Fiber
G.654 optical fiber inonyanya kushandiswa mu submarine cable communication systems.Kuti usangane nezvinodiwa kureba uye hukuru-hukuru hwekutaurirana kwesubmarine cable.
5, G.655 Fiber
G.653 fiber ine zero dispersion pa 1550nm wavelength uye haishandisi WDM system, saka fiber ine zviduku asi kwete zero dispersion pa 1550nm wavelength yakagadzirwa.Iyi iG.655 faibha.G.655 fiber ine diki attenuation pedyo ne1550nm wavelength, kupararira kuduku uye kwete zero, uye inogona kushandiswa muWDM systems;Nokudaro, G.655 fiber yave iri sarudzo yekutanga kune mitsara yehurefu yakareba kwemakore anopfuura 20 kumativi e 2000. Iko kuenzanisa kwekudzivirira uye kupararira kwehuwandu hweG.655 fiber inoratidzwa mumufananidzo 7.
Mufananidzo 7. Dispersion coefficient yeG.652/G.653/G.655
Zvisinei, yakadaro yakanaka optical fiber inotarisanawo nezuva rekubvisa.Nekukura kwekuparadzira teknolojia yekubhadhara, G.655 fiber yakatsiviwa neG.652 fiber.Kutanga kubva munenge muna 2005, mitsetse yehunde yakareba yakatanga kushandisa G.652 optical fiber pamwero mukuru.Parizvino, G.655 optical fiber inenge inoshandiswa chete pakugadzirisa mutsara wepakutanga wenguva refu.
Pane chimwe chikonzero chakakosha nei G.655 fiber ichibviswa:
The mode field diameter chiyero cheG.655 faibha i8～11μm (1550nm).Iyo modhi yemunda dhayamita ye fiber inogadzirwa nevagadziri vakasiyana-siyana inogona kuva nemusiyano mukuru, asi hapana mutsauko mumhando yefiber, uye iyo fiber ine musiyano mukuru mumodhi yemunda dhayamita yakabatana Dzimwe nguva pane attenuation yakakura, iyo inounza hukuru. kusagadzikana kugadzirisa;Naizvozvo, muhunde hurongwa, vanoshandisa vachasarudza G.652 faibha pane G.655, kunyange kana zvinoda mukuru kuparadzirwa muripo mari.
6, G.656 Fiber
Tisati tasuma G.656 optical fiber, ngatidzokerei kunguva apo G.655 yaitonga kureba hunde mitsetse.
Kubva pakuona kwemaitiro ekuderedza, G.655 fiber inogona kushandiswa pakukurukurirana muwavelength range kubva 1460nm kusvika 1625nm (S + C + L band), asi nokuti kupararira kwehuwandu hwefiber iri pasi pe1530nm iduku zvikuru, haisi. yakakodzera kune wavelength division (WDM).) system inoshandiswa, saka iyo inogona kushandiswa yavelength yeG.655 fiber i1530nm～1525nm (C+L band).
Kuti uite 1460nm-1530nm wavelength range (S-band) ye optical fiber inogonawo kushandiswa pakukurukurirana, edza kuderedza kupararira kutsetseka kweG.655 optical fiber, iyo inova G.656 optical fiber.The attenuation coefficient uye dispersion coefficient yeG.656 fiber inoratidzwa mumufananidzo 8.
Mufananidzo 8
Pamusana pezvisina-mutsara zvinokonzerwa ne optical fiber, nhamba yezviteshi muWDM marefu masystem haawedzere zvakanyanya, nepo mutengo wekuvaka we metropolitan area optical fibers wakaderera.Hazvina musoro kuwedzera nhamba yezviteshi muWDM masisitimu.Nokudaro, ikozvino dense wavelength division (DWDM) ) Kunyanya ichiri 80/160 wave, C + L wave band ye optical fiber inokwana kuzadzisa zvinodiwa.Kunze kwekunge masisitimu akakwira aine zvinodiwa zvakakura zvekufamba kwechiteshi, G.656 fiber haizombove nekushandiswa kukuru.
6, G.657 Fiber
G.657 optical fiber ndiyo inonyanya kushandiswa optical fiber kunze kweG.652.Tambo yemaziso inoshandiswa paimba yeFTTH yakatetepa kupfuura tambo yerunhare, ine G.657 faibha mukati. Kana uchida zvimwe zvakawanda nezvazvo, pls tsvaga https://www.gl-fiber.com/bare-optical-fiber / kana email kune [email protected], Ndatenda!