Ukurikije ibipimo bya ITU-T, fibre optique itumanaho igabanijwemo ibyiciro 7: G.651 kugeza G.657.Ni irihe tandukaniro riri hagati yabo?
1 、 G.651 fibre
G.651 ni Multi-moderi fibre, na G.652 kugeza G.657 byose ni fibre imwe.
Fibre optique igizwe nibyingenzi, kwambara no gutwikira, nkuko bigaragara ku gishushanyo 1.
Mubisanzwe diameter ya cladding ni 125um, igipfundikizo (nyuma yo kurangi) ni 250um;na diameter yibanze ntafite agaciro gahamye, kuko itandukaniro rya diameter yibanze izahindura imikorere ya fibre optique yohereza muri nini.
Igicapo 1. Imiterere ya fibre
Mubisanzwe diameter yibanze ya fibre fibre kuva 50um kugeza 100um.Imikorere yo kohereza fibre itezimbere cyane mugihe diameter yibanze iba nto.Nkuko bigaragara ku gishushanyo cya 2.
Igishushanyo 2. Uburyo bwinshi bwo kohereza
Uburyo bumwe gusa bwo kohereza iyo diameter yibanze ya fibre iba ntoya kurenza agaciro runaka, nkuko bigaragara ku gishushanyo cya 3, ihinduka fibre imwe.
Igicapo 3. Uburyo bumwe bwo kohereza
2 、 G.652 Fibre
G.652 fibre optique ni fibre optique ikoreshwa cyane. Kugeza ubu, usibye fibre yo murugo (FTTH) insinga ya optique yo murugo, fibre optique ikoreshwa mumwanya muremure hamwe na metero nkuru ni hafi ya fibre optique ya G.652. abakiriya batumiza ubu bwoko cyane kuva Honwy.
Attenuation ni kimwe mubintu byingenzi bigira ingaruka ku ihererekanyabubasha rya fibre optique.Coefficient ya attenuation ya fibre optique ifitanye isano nuburebure bwumurongo.Nkuko bigaragara ku gishushanyo cya 4. Birashobora kugaragara uhereye ku gishushanyo ko kwiyongera kwa fibre kuri 1310nm na 1550nm ari bito, bityo 1310nm na 1550nm byahindutse Windows ikoresha uburebure bwumurongo wa fibre imwe.
Igicapo 4. Coefficient ya Attenuation ya fibre yuburyo bumwe
3 、 G.653 Fibre
Nyuma yumuvuduko wa sisitemu yitumanaho ya optique irushijeho kwiyongera, kohereza ibimenyetso bitangira gukwirakwizwa no gukwirakwiza fibre.Gutatana bivuga kugoreka ibimenyetso (kwaguka kwa pulse) guterwa nibice bitandukanye byinshyi cyangwa uburyo butandukanye bwibimenyetso (pulse) bikwirakwiza kumuvuduko utandukanye kandi bigera ku ntera runaka, nkuko bigaragara ku gishushanyo cya 5.
Igicapo 5. Gukwirakwiza fibre
Coefficient de dispersion ya fibre optique nayo ifitanye isano nuburebure bwumuraba, nkuko bigaragara ku gishushanyo cya 6. Fibre imwe yuburyo bumwe ifite coefficente ntoya ya attenuation kuri 1550 nm, ariko coefficient de dispersion kuri ubu burebure ni nini.Abantu rero bakoze fibre yuburyo bumwe hamwe na coefficient de dispersion ya 0 kuri 1550nm.Iyi fibre isa neza neza ni G.653.
Igicapo 6. Coefficient de dispersion ya G.652 na G.653
Nyamara, ikwirakwizwa rya fibre optique ni 0 ariko ntibikwiye gukoresha sisitemu yo kugabanya umurongo (WDM), bityo fibre optique ya G.653 yahise ikurwaho vuba.
4 、 G.654 Fibre
G.654 fibre optique ikoreshwa cyane muri sisitemu yo gutumanaho ya kabili.Kugirango wuzuze intera ndende nubushobozi-busabwa bwitumanaho rya kabili.
5 、 G.655 Fibre
Fibre ya G.653 ifite ikwirakwizwa rya zeru kuri 1550nm yumurambararo kandi ntikoresha sisitemu ya WDM, nuko fibre ifite disikuru ntoya ariko itari zeru kuri 1550nm yuburebure.Iyi ni fibre ya G.655.G.655 fibre hamwe na attenensiya ntoya hafi ya 1550nm yumurambararo, gutatanya gato ntabwo ari zeru, kandi irashobora gukoreshwa muri sisitemu ya WDM;Kubwibyo, fibre ya G.655 niyo yahisemo bwa mbere kumirongo miremire yimirongo miremire mumyaka irenga 20 ahagana mu 2000. Coefficient de attenuation na dispersion ya fibre ya G.655 irerekanwa mumashusho 7.
Igicapo 7. Coefficient de dispersion ya G.652 / G.653 / G.655
Ariko, fibre nziza ya optique nayo ihura numunsi wo kurandurwa.Hamwe no gukura kwikoranabuhanga ryindishyi zikwirakwizwa, fibre G.655 yasimbuwe na fibre G.652.Guhera nko mu 2005, imirongo miremire ya trunk yatangiye gukoresha fibre optique ya G.652 kurwego runini.Kugeza ubu, fibre optique ya G.655 ikoreshwa gusa mukubungabunga umurongo wambere-intera ndende.
Hariho indi mpamvu yingenzi ituma fibre ya G.655 ikurwaho:
Uburyo bwa diametre yumurima wa fibre ya G.655 ni 8 ～ 11μm (1550nm).Uburyo bwa diametre yumurima wa fibre yakozwe nabakora fibre itandukanye irashobora kugira itandukaniro rinini, ariko nta tandukaniro ryubwoko bwa fibre, kandi fibre ifite itandukaniro rinini muburyo bwa diametre yumurima ihujwe Rimwe na rimwe hariho attenuation nini, izana ibikomeye kubangamira kubungabunga;Kubwibyo, muri sisitemu yimikorere, abakoresha bazahitamo fibre ya G.652 aho guhitamo G.655, kabone niyo bisaba amafaranga menshi yindishyi.
6 、 G.656 Fibre
Mbere yo kumenyekanisha fibre optique ya G.656, reka dusubire mubihe igihe G.655 yiganjemo imirongo miremire.
Urebye ibiranga attenuation, fibre ya G.655 irashobora gukoreshwa mugutumanaho muburebure bwumuraba kuva kuri 1460nm kugeza kuri 1625nm (umurongo wa S + C + L), ariko kubera ko coeffisente yo gukwirakwiza fibre iri munsi ya 1530nm ari nto cyane, ntabwo bikwiranye no kugabana umurongo (WDM).) sisitemu yakoreshejwe, bityo umurongo ukoreshwa wa fibre ya G.655 ni 1530nm ～ 1525nm (bande ya C + L.).
Kugirango ukore uburebure bwa 1460nm-1530nm (S-band) ya fibre optique nayo irashobora gukoreshwa mugutumanaho, gerageza kugabanya ahantu hatatanye fibre optique ya G.655, ihinduka fibre optique ya G.656.Coefficient ya attenuation na dispersion ya fibre ya G.656 irerekanwa mumashusho 8.
Igicapo 8
Bitewe n'ingaruka zitari umurongo wa fibre optique, umubare wimiyoboro ya sisitemu ndende ya WDM ntuziyongera cyane, mugihe ikiguzi cyo kubaka agace ka metropolitani fibre optique ari gito.Ntabwo ari byiza kongera umubare wimiyoboro muri sisitemu ya WDM.Kubwibyo, igabana ryinshi ryumurongo (DWDM)) Ahanini haracyari 80/160, umurongo wa C + L wa fibre optique urahagije kugirango uhuze ibyifuzo.Keretse niba sisitemu yihuta ifite byinshi bisabwa kugirango habeho intera, fibre G.656 ntizigera igira imikoreshereze minini.
6 、 G.657 Fibre
G.657 fibre optique ni fibre ikoreshwa cyane usibye G.652.Umugozi wa optique ukoreshwa murugo rwa FTTH unanutse kurenza umurongo wa terefone, ni hamwe na fibre ya G.657 imbere.Niba ukeneye ibisobanuro birambuye kubyerekeye, pls shakisha https://www.gl-fiber.com/bare-optical-fibre / cyangwa imeri kuri [email protected], Urakoze!