Sezvatinoziva tese, multimode fiber inowanzo kupatsanurwa kuita OM1, OM2, OM3 uye OM4.Zvino zvakadini ne single mode fiber?Muchokwadi, iwo mhando dze single mode fiber inoita seyakaomesesa kupfuura multimode fiber.Kune maviri ekutanga masosi ekutsanangurwa kweimwe modhi optical fiber.Imwe ndeye ITU-T G.65x series, uye imwe yacho IEC 60793-2-50 (yakabudiswa seBS EN 60793-2-50).Pane kureva zvese zviri zviviri ITU-T neIEC terminology, ndinongonamatira kune yakapfava ITU-T G.65x muchinyorwa chino.Kune gumi nemapfumbamwe akasiyana emodhi optical fiber yakatarwa inotsanangurwa neITU-T.
Rudzi rwega rwega rune nzvimbo yarwo yekushandisa uye kushanduka kweaya optical fiber maratidziro anoratidza kushanduka kweiyo tekinoroji tekinoroji kubva pakuiswa kwekutanga kwe single mode optical fiber kusvika nhasi.Kusarudza iyo yakakodzera yepurojekiti yako inogona kuve yakakosha maererano nekuita, mutengo, kuvimbika uye kuchengetedzeka.Muchikamu chino, ndinogona kutsanangura zvishoma pamusoro pekusiyana pakati pezvinyorwa zveG.65x zvakatevedzana zve single mode optical fiber mhuri.Ndinovimba kukubatsira kuita sarudzo yakanaka.
G.652
ITU-T G.652 fiber inonziwo standard SMF (single mode fiber) uye ndiyo inonyanya kushandiswa fiber.Inouya mumhando ina (A, B, C, D).A uye B vane nhongonya yemvura.C uye D inobvisa peak yemvura kuti iite yakazara spectrum kushanda.G.652.A uye G.652.B fibers dzakagadzirirwa kuva ne zero-dispersion wavelength pedyo ne1310 nm, saka dzakagadziridzwa kuti dzishande mu1310-nm band.Ivo vanogona zvakare kushanda mu1550-nm bhendi, asi haina kugadziridzwa kudunhu rino nekuda kwekupararira kwakanyanya.Aya optical fibers anowanzo shandiswa mukati meLAN, MAN uye kuwana network masisitimu.Izvo zvakasiyana-siyana zvemazuva ano (G.652.C uye G.652.D) zvinoratidzira mvura yakaderedzwa yepamusoro inovabvumira kushandiswa munharaunda yewavelength pakati pe1310 nm uye 1550 nm inotsigira Coarse Wavelength Division Multiplexed (CWDM) transmission.
G.653
G.653 single mode faibha yakagadziridzwa kuti igadzirise kusawirirana uku pakati peyakanakisa bandwidth pane imwe wavelength uye kurasikirwa kwakaderera pane imwe.Iyo inoshandisa yakaomesesa dhizaini munharaunda yepakati uye diki diki nharaunda, uye wavelength ye zero chromatic dispersion yakachinjirwa kusvika ku1550 nm kuti ienderane nekurasikirwa kwakaderera mufiber.Nokudaro, G.653 fiber inonziwo dispersion-shifted fiber (DSF).G.653 ine saizi yakaderedzwa yepakati, iyo yakagadziridzwa kune refu-haul single mode transmission masisitimu vachishandisa erbium-doped fiber amplifiers (EDFA).Nekudaro, iyo yakakwira simba rekuisa mu fiber musimboti inogona kuburitsa isina mutsara mhedzisiro.Imwe yeanonyanya kunetsa, mana-wave mixing (FWM), inoitika muDense Wavelength Division Multiplexed (CWDM) system ine zero chromatic dispersion, zvichikonzera kusingagamuchirwe crosstalk uye kupindira pakati pematanho.
G.654
Madimikira eG.654 ane musoro unoti "maitiro ekucheka-shanduka kwakachinja single mode optical fiber netambo."Iyo inoshandisa yakakura yepakati saizi yakagadzirwa kubva yakachena silica kuti iwane yakafanana-refu-kureba kuita nekuderera attenuation mu1550-nm bhendi.Iyo inowanzo ine yakakwira chromatic dispersion pa1550 nm, asi haina kugadzirwa kuti ishande pa1310 nm zvachose.G.654 faibha inogona kubata yakakwirira simba mwero pakati 1500 nm uye 1600 nm, iyo inonyanya kugadzirirwa yakawedzerwa refu-haul undersea applications.
G.655
G.655 inozivikanwa se-non-zero dispersion-shifted fiber (NZDSF).Iyo ine diki, inodzorwa huwandu hwechromatic dispersion muC-band (1530-1560 nm), uko amplifiers anoshanda zvakanyanya, uye ine yakakura core area pane G.653 fiber.NZDSF fiber inokunda matambudziko ane chekuita neina-wave mixing uye mamwe maitiro asina mutsara nekufambisa zero-dispersion wavelength kunze kwe1550-nm inoshanda hwindo.Kune marudzi maviri eNZDSF, anozivikanwa se (-D)NZDSF uye (+D)NZDSF.Vane zvakatevedzana ane negative uye positive slope maringe newavelength.Mufananidzo unotevera unoratidza kupararira kwezvimiro zvemhando ina huru single mode fiber.Iyo yakajairika chromatic dispersion yeG.652 inowirirana fiber ndeye 17ps/nm/km.G.655 fibers yainyanya kushandiswa kutsigira zvirongwa zvenguva refu zvinoshandisa DWDM transmission.
G.656
Pamwe chete nemafiibhi anoshanda zvakanaka pamhando dzakasiyana-siyana dzewavelengths, mamwe akagadzirwa kuti ashande zvakanyanya pane chaiwo wavelengths.Iyi ndiyo G.656, iyo inonziwo Medium Dispersion Fiber (MDF).Yakagadzirirwa kuwanikwa kwenzvimbo uye kureba dhizaini inoita zvakanaka pa1460 nm uye 1625 nm.Iri rudzi rwefiber rakagadzirwa kuti ritsigire marefu-haul masisitimu anoshandisa CWDM uye DWDM kutapurirana pamusoro peyakatsanangurwa wavelength renji.Uye panguva imwecheteyo, inobvumira kushandiswa nyore nyore kweCWDM mumaguta makuru, uye kuwedzera simba re fiber muDWDM systems.
G.657
G.657 optical fibers inotarisirwa kuti ienderane neG.652 optical fibers asi ine zvakasiyana bend senitivity performance.Yakagadzirirwa kubvumira fiber kukotama, pasina kukanganisa kushanda.Izvi zvinowanikwa kuburikidza nemugero wemaziso unoratidza mwenje wakarasika uchidzokera mukati, pane kuti urasikirwe mukuvhara, zvichiita kuti kupeta kukuru kwefiber.Sezvatinoziva tese, mumaindasitiri eTV neFTTH, zvakaoma kudzora bend radius mumunda.G.657 ndiyo yazvino chiyero cheFTTH application, uye, pamwe chete neG.652 ndiyo inonyanya kushandiswa mukupedzisira drop faibha network.
Kubva mundima iri pamusoro, tinoziva kuti mhando dzakasiyana dze single mode fiber ine akasiyana application.Sezvo G.657 ichienderana neG.652, vamwe vanoronga nevaisisi vanowanzosangana nazvo.Kutaura zvazviri, G657 ine nzvimbo yakakura yekubhenda kupfuura G.652, iyo inonyanya kukodzera kushandiswa kweFTTH.Uye nekuda kwematambudziko eG.643 ari kushandiswa muWDM system, ikozvino haisati yashandiswa, ichikwidziridzwa neG.655.G.654 inonyanya kushandiswa mune subsea application.Zvinoenderana nendima iyi, ndinovimba une nzwisiso yakajeka yeaya single mode fibers, ayo anogona kukubatsira kuita sarudzo chaiyo.
Nguva yekutumira: Sep-03-2021