Yimuphi umehluko phakathi kwamamojula wemodi eyodwa ye-optical module kanye namamojula we-multi-mode optical nokuthi angawakhetha kanjani?

Ngokuthuthukiswa okusheshayo kwezikhungo zedatha kanye nezinhlelo zokusebenza ze-5G, amamojula optical kancane kancane aziwa ngabantu abaningi futhi asetshenziswe kabanzi. Njengoba sonke sazi, amamojula abonakalayo angahlukaniswa ngokwezinhlobo zepharamitha, njengemojula yemodi eyodwa yokubona kanye nemojula ye-multi-mode optical esivame ukuyikhuluma. Ingabe uyazi ukuthi imodi eyodwa kanye nemodi eminingi isho ukuthini kumamojula optical wemodi eyodwa kanye namamojula okusebenza wemodi eminingi? Yimuphi umehluko phakathi kwamamojula wemodi eyodwa kanye namamojula okusebenza wemodi eminingi? Ungakhetha kanjani phakathi kwezimo ezihlukene zohlelo lokusebenza? Lesi sihloko sizokutshela umehluko phakathi kokubili ngokuningiliziwe nokuthi ungakhetha kanjani umbuzo, ungafunda ngemibuzo.

1.Yini amamojula e-single-mode optical kanye namamojula we-multi-mode optical?

Amamojula optical ahlukaniswe abe amamojula optical wemodi eyodwa kanye namamojula we-multi-mode optical ngokuya ngezinhlobo zefiber optical ezisebenzayo. I-fiber optical wavelength yamamojula we-single-mode optical yi-1310nm, 1550nm kanye ne-WDM wavelength, kuyilapho i-fiber optical wavelength yamamojula e-multi-mode optical yi-850nm noma i-1310nm. Njengamanje, i-optical fibre wavelength ingama-850nm. Imodyuli ye-single-mode optical module kanye ne-multi-mode optical module Imojuli ye-Optical Mode eyodwa kanye ne-multi-mode optical module ibhekisela kumodi yokudlulisela imicu optical module optical. Ngakho-ke, kufanele zisetshenziswe kanye nemicu ye-optical yemodi eyodwa kanye nama-multi-mode optical fibers. Ububanzi bomugqa wemicu ye-optical yemodi eyodwa ingu-9/125μm, kanti ububanzi bomugqa wemicu ye-multi-mode optical yi-50/125μm noma 62.5/125μm.

2.Umehluko phakathi kwemodyuli ye-single-mode optical kanye ne-multi-mode optical module

Eqinisweni, i-single-mode optical module kanye ne-multi-mode optical module ayihlukile kuphela ohlotsheni lwefayibha esetshenzisiwe, kodwa futhi ihlukile kwezinye izici, njengoba kukhonjisiwe ngezansi:

①Ibanga lokudlulisela

Amamojula wemodi eyodwa optical avame ukusetshenziselwa ukudluliswa kwebanga elide, futhi ibanga lokudlulisela lamamojula wemodi eyodwa optical lihlukile ngamaza ahlukene ophiko lwefiber optical. I-single-mode optical module ene-fiber optical wavelength ye-1310nm inokulahlekelwa okukhulu kodwa ukuhlakazeka okuncane phakathi nenqubo yokudlulisela, futhi ibanga lokudlulisela ngokuvamile lingaphakathi kwe-40km, kuyilapho imodyuli yemodi eyodwa ene-optical fiber wavelength ye-1550nm ine ukulahlekelwa okuncane kodwa ukuhlakazeka okukhulu phakathi nenqubo yokudlulisela, futhi ibanga lokudlulisela ngokuvamile lingaphezu kuka-40km, futhi okude kakhulu kungadluliselwa ngokuqondile ngaphandle kwe-relay 120km. Amamojula we-Multi-mode optical avame ukusetshenziselwa ukudluliselwa kwebanga elifushane, futhi ibanga lokudlulisela ngokuvamile liphakathi kwama-300 kuya ku-500m.

②Ububanzi bohlelo lokusebenza

Kusukela kusingeniso esingenhla, kungabonakala ukuthi amamojula wemodi eyodwa optical avame ukusetshenziswa kumanethiwekhi anamabanga amade okudlulisela kanye namazinga aphezulu okudlulisela, njengamanethiwekhi ezindawo zedolobha elikhulu kanye namanethiwekhi optical optical fiber, kuyilapho amamojula we-multi-mode optical evame ukusetshenziswa amanethiwekhi anamabanga amafushane okudlulisela kanye namazinga okudlulisela aphansi, njengamagumbi emishini yesikhungo sedatha namanethiwekhi endawo.

③I-Illuminant

Umthombo wokukhanya osetshenziswa i-single-mode optical module kanye ne-multi-mode optical module ihlukile, umthombo wokukhanya osetshenziswa i-single-mode optical module iyi-light emitting diode noma i-laser, kanye nomthombo wokukhanya osetshenziswa i-multi-mode. I-Optical module yi-LD noma i-LED.

④Ukuchithwa kwamandla

Ukusetshenziswa kwamandla kwamamojula wemodi eyodwa optical ngokuvamile kukhulu kunaleyo yamamojula e-multi-mode optical, kodwa ukusetshenziswa kwamandla kwamamojula optical kunqunywa ikakhulukazi izici ezifana namapharamitha, imodeli kanye nohlobo lwemojula ye-optical, ngakho ukusetshenziswa kwamandla. yamamojula wemodi eyodwa ye-optical anemingcele ehlukene, amamodeli nemikhiqizo nayo izofana.

⑤Intengo

Uma kuqhathaniswa namamojula we-multi-mode optical, amamojula we-optical mode eyodwa asebenzisa inombolo enkulu yamadivayisi, ukusetshenziswa komthombo wokukhanya we-laser kubiza kakhulu, ngakho-ke intengo yamamojula we-single-mode optical iphakeme kunentengo yamamojula we-multi-mode optical .

3.Indlela yokukhetha imodyuli ye-optical yemodi eyodwa kanye ne-multi-mode optical module?

Njengoba kushiwo ngenhla, amamojula e-single-mode optical kanye namamojula we-multi-mode optical ahlukile ngokwebanga lokudlulisela, ububanzi besicelo, ukusetshenziswa komthombo wokukhanya, ukusetshenziswa kwamandla kanye nentengo, ngakho-ke ukukhetha kudinga ukusekelwe endaweni yangempela yesicelo. Isibonelo, inethiwekhi yendawo yedolobha elikhulu enebanga elide lokudlulisela kufanele ikhethe imojuli yokubona yemodi eyodwa, futhi inethiwekhi yendawo enebanga elifushane lokudlulisela kufanele ikhethe imojula ye-multi-mode optical. Ngamagama alula, amamojula we-multi-mode optical kufanele akhethwe endaweni yenethiwekhi enama-node amaningi, izixhumi eziningi, ukugoba okuningi kanye nenani elikhulu lezixhumi nama-couplers, futhi amamojula we-single-mode optical kufanele akhethwe emigqeni ye-trunk ede.

4.Fingqa

Ngesethulo esingenhla, ngikholwa ukuthi kufanele ube nokuqonda okucacile kwamamojula okusebenza wemodi eyodwa kanye namamojula okusebenza wemodi eminingi. Ukuze ugweme ukwehluleka kwesixhumanisi, kunconywa ukuthi ukhethe imojuli yokubona yemodi eyodwa noma imojuli yokubona enemodi eminingi ngokuya ngesimo sakho sangempela sohlelo lokusebenza. Okubaluleke nakakhulu, kungcono ukungaxubi i-fiber optical yemodi eyodwa nemodyuli yemodi eyodwa.