Marka loo eego halbeegyada ITU-T, fiilooyinka indhaha ee isgaadhsiinta ayaa loo qaybiyaa 7 qaybood: G.651 ilaa G.657.Waa maxay farqiga u dhexeeya?
1, G.651 fiber
G.651 waa Multi-mode fiber, iyo G.652 ilaa G.657 dhamaantood waa fiilooyinka hal-habka ah.
Fiber indhaha waxa uu ka kooban yahay xudunta, daboolka iyo dahaarka, sida ku cad sawirka 1.
Guud ahaan dhexroorka daboolku waa 125um, lakabka daboolka (midabaynta ka dib) waa 250um;iyo dhexroorka udub-dhexaadka ah ma laha qiimo go'an, sababtoo ah farqiga u dhexeeya dhexroorka xudunta ayaa bedeli doona waxqabadka gudbinta fiber indhaha ee weyn.
Jaantuska 1. Qaab dhismeedka Fiber
Caadi ahaan dhexroorka xudunta u ah fiber multimode min 50um ilaa 100um.Waxqabadka gudbinta ee fiber-ka ayaa si weyn loo wanaajiyey marka dhexroorka xudunta uu noqdo mid yar.Sida ka muuqata sawirka 2aad.
Jaantus 2. Gudbinta hab badan
Kaliya hal qaab oo gudbin ah marka dhexroorka xudunta ah ee fiberku uu ka yaraado qiimo gaar ah, sida ku cad Jaantuska 3, kaas oo noqda fiber hal qaab ah.
Jaantus 3. Gudbinta hab kali ah
2,G.652 Fiber
Fiber indhaha ee G.652 ayaa ah tan ugu isticmaalka badan fiber-ka indhaha.Wakhtigan xaadirka ah, marka lagu daro fiber-ka guriga (FTTH), fiilada indhaha ee guriga, fiilada indhaha ee loo isticmaalo masaafo dheer iyo aagga magaalo-madaxda ayaa ku dhow dhammaan G.652 fiber indhaha. macaamiishu waxay ka dalbadaan noocaan oo kale Honwy.
Attenuation waa mid ka mid ah qodobka ugu muhiimsan kaas oo saameeya fogaanta gudbinta ee fiber indhaha.Isku-dheellitirnaanta attenuation-ka ee fiber-ka indhaha waxay la xiriirtaa hirarka dhererka.Sida ku cad sawirka 4. Waxaa laga arki karaa shaxanka in hoos u dhigista fiber-ka ee 1310nm iyo 1550nm ay aad u yar tahay, sidaas darteed 1310nm iyo 1550nm waxay noqdeen daaqadaha dhaadheer ee inta badan loo isticmaalo fiilooyinka hal-habka ah.
Jaantuska 4. Attenuation coefficient of hal mode fiber
3,G.653 Fiber
Ka dib markii xawaaraha nidaamyada isgaadhsiinta indhaha la sii kordhiyo, gudbinta ishaadu waxay bilaabataa inay saamayso fidinta fiber-ka.Kala firdhinta waxa loola jeedaa qallooca isha (calaamadaha garaaca wadnaha) ee ay sababto qaybaha kala duwan ee soo noqnoqda ama qaybaha kala duwan ee signalka (pulse) ee ku faafaya xawaare kala duwan oo gaadhaya masaafo gaar ah, sida ku cad sawirka 5.
Jaantuska 5. Fiber Fiber
Isku dhafka fibre-galaha ee fiilada indhaha ayaa sidoo kale la xiriirta hirarka hirarka, sida ku cad Jaantuska 6. Fiber-mode-ku-meel-gaar ah ayaa leh isku-dhafka ugu yar ee attenuation coefficient at 1550 nm, laakiin isku-xirnaanta kala firdhinta ee hirarka dhererka ayaa ka weyn.Markaa dadku waxay soo saareen fiber-hal-qaab ah oo leh isku-darka kala firdhisan ee 0 at 1550nm.Fiberkan u muuqda mid kaamil ah waa G.653.
Jaantuska 6. Isku xidhka kala firdhinta ee G.652 iyo G.653
Si kastaba ha ahaatee, kala firdhisanaanta fiber optic-ga waa 0 laakiin kuma habboona isticmaalka nidaamka qaybinta mawjada (WDM), sidaas awgeed G.653 fiber indhaha ayaa si dhakhso ah loo tirtiray.
4,G.654 Fiber
G.654 fiber optic waxaa inta badan loo isticmaalaa hababka isgaarsiinta cable badda hoosteeda.Si loo daboolo shuruudaha fogaanta iyo awoodda baaxadda leh ee isgaarsiinta fiilooyinka badda hoosteeda.
5,G.655 Fiber
G.653 fiber waxa uu leeyahay eber kala firdhisan oo dhererkiisu yahay 1550nm mana isticmaalo nidaamka WDM, sidaas awgeed fibre yar oo aan eber ahayn 1550nm dhererkiisu waa la sameeyay.Tani waa G.655 fiber.G.655 fiber oo leh tabaryar ugu yar ee u dhow mawjada 1550nm, kala firdhisan yar oo aan eber ahayn, waxaana loo isticmaali karaa nidaamyada WDM;Sidaa darteed, fiber G.655 ayaa ah doorashada koowaad ee khadadka jirridda fogfog in ka badan 20 sano agagaarka 2000. Attenuation coefficient iyo fidinta coefficient ee G.655 fiber ayaa lagu muujiyay sawirka 7.
Jaantuska 7. Isku xidhka kala firdhinta G.652/G.653/G.655
Si kastaba ha ahaatee, sida fibre indhaha ee wanaagsan ayaa sidoo kale wajahaya maalinta ciribtirka.Iyada oo qaan-gaarnimada tignoolajiyada magdhowga kala firdhinta, G.655 fiber waxaa lagu beddelay fiber G.652.Laga soo bilaabo qiyaastii 2005, khadadka jirridda fogaanta fog waxay bilaabeen inay isticmaalaan G.652 fiber optic ah miisaan ballaaran.Waqtigan xaadirka ah, G.655 fiber indhaha ayaa ku dhawaad kaliya loo isticmaalo dayactirka khadka fog ee asalka ah.
Waxaa jirta sabab kale oo muhiim ah oo G.655 fiber la tirtiray:
Heerka dhexroorka goobta qaabka ee fiber G.655 waa 8～11μm (1550nm).Dhexroorka goobta qaab-dhismeedka fiilooyinka ay soo saaraan warshado kala duwan ayaa laga yaabaa inay leeyihiin farqi weyn, laakiin ma jiro farqi u dhexeeya nooca fiber-ka, iyo fiber-ka leh farqiga weyn ee dhexroorka goobta ayaa ku xiran Mararka qaarkood waxaa jira attenuation weyn, taas oo keenta weyn. dhib la'aanta dayactirka;Sidaa darteed, nidaamka jirridda, isticmaalayaashu waxay dooran doonaan fiber G.652 halkii ay ka ahaan lahaayeen G.655, xitaa haddii ay u baahan tahay kharashyada magdhowga kala firdhinta weyn.
6,G.656 Fiber
Kahor intaanan soo bandhigin G.656 fiber optical, aan dib ugu laabano waagii uu G.655 xukumayay khadadka jirridda fog.
Marka loo eego sifooyinka attenuation, fiber G.655 waxaa loo isticmaali karaa isgaarsiinta ee kala duwan ee hirarka ka 1460nm ilaa 1625nm (S + C + L band), laakiin sababta oo ah kala firdhiyey isku dhafka ah ee fiber ka hooseeya 1530nm waa mid aad u yar, ma aha. ku haboon qaybta hirarka dhererka (WDM).) nidaamka la isticmaalo, sidaas darteed baaxadda hirarka dhererka la isticmaali karo ee G.655 fiber waa 1530nm～1525nm (C+L band).
Si loo sameeyo 1460nm-1530nm dhererka wavelength (S-band) ee fiber indhaha sidoo kale waxaa loo isticmaali karaa isgaarsiinta, isku day in la yareeyo jiirada kala firidhsan ee fiber indhaha G.655, kaas oo noqda G.656 fiber indhaha.Isku-dheelitirka attenuation coefficient and disperssion coefficient of G.656 fiber ayaa lagu muujiyay sawirka 8.
Jaantuska 8
Sababo la xiriira saameynta aan tooska ahayn ee fiber-ka indhaha, tirada kanaalada nidaamyada fog-fog ee WDM si weyn uma kordhi doonaan, halka kharashka dhismaha ee fiilooyinka indhaha ee aagga magaalo-madaxda uu aad u hooseeyo.Macna maaha in la kordhiyo tirada kanaalada nidaamyada WDM.Sidaa darteed, qaybta mawjadaha cufan ee hadda jira (DWDM) ) Inta badan weli 80/160 mawjada, C + L mawjada fiilada indhaha ayaa ku filan si loo daboolo baahida.Ilaa nidaamyada xawaaraha sare leh ay leeyihiin shuruudo weyn oo loogu talagalay kala dheereynta kanaalka, G.656 fiber waligeed ma yeelan doonto isticmaal baaxad leh.
6,G.657 Fiber
G.657 fiber optics waa tan ugu badan ee la isticmaalo marka laga reebo G.652.Fiilada indhaha ee loo isticmaalo guriga FTTH oo ka khafiifsan khadka taleefanka, waxa uu ku dhex jiraa fiber G.657. Haddii aad u baahan tahay tafaasiil dheeraad ah oo ku saabsan, pls hel https://www.gl-fiber.com/bare-optical-fiber / ama iimayl ku dir [email protected], Mahadsanid!