1.. KwitonderaFiberAMplifiers
Hariho ubwoko butatu bwingenzi bwa amplifiers oplifiers:
(1) Semiconductor amplifier ya Oplifier (SOA, Semiconductor Amplifier ya Oplifier);
(2) Oplikice fibre ya fibre ifasha ibintu bidasanzwe byisi (Erbium Er, Thulium TM Pr, Rubidium nd, nibindi byinshi bya fiblifiers ya erbium (EDFA)
.) Kugereranya imikorere nyamukuru yibi amplifiers oplifiers byerekanwe kumeza
EDFA (Erbium yateguye fibre fiblifier)
Uburyo bwinshi bwa laser bwa laser burashobora gushingwa no gukora fibre ya quartz hamwe nibintu bidasanzwe byisi (nka ND, PR, PR, TM, kandi urumuri rwinjiza rukoronya mu buryo butaziguye mu gikorwa cya pompe. Nyuma yo gutanga ibitekerezo bikwiye, fibre laser yashizweho. Uburebure bwakazi bwa ND-Dride ni 1060nm na 1330nm, hamwe niterambere ryayo no gusaba ni bike bigarukira kubera gutandukana kwa CORT ya fibre optique nizindi mpamvu. Uburebure bwumuyaga wa EDFA na PDFA birimo mumadirishya yigihombo gito (1550nm) nuburebure bwa s-1300) bwimitwe ya fibre, kandi tdfa ikora muri s-berekeza muri s-bande, ibereye cyane kubikorwa bya fibre ya fibre. Cyane cyane Edfa, iterambere ryihuse, ryabaye rifatika.
ThePumwigishwa wa EDFA
Imiterere y'ibanze ya EDFA irerekanwa ku gishushanyo cya 1 (a), igizwe ahanini na fibre ikomeye ya metero (urugero rw'imbere ya (9-1000). Ikimenyetso cyoroshye kandi urumuri rushobora kwamamaza mu cyerekezo kimwe (kuvoma kwumvikana), kuvoma bitandukanye (kuvoma) cyangwa icyerekezo byombi (kuvoma bipimise) muri fibre ya erbium. Iyo urumuri rwikimenyetso numucyo wa pompe batewe muri fibre ya erbium icyarimwe, isubira mu mbogamizi yoroheje (ishusho ijyanye no gushyira mu gaciro k'ibimenyetso, hanyuma igabora vuba mu rwego rw'ibimenyetso, bityo ikosoresha ihuye n'ibyamamare, bityo ikosore ihuye n'umucyo w'ikimenyetso, ku buryo ibimenyetso byoroha. Igishushanyo 1 (c) Ese imyumvire yacyo yongerewe (ase) ifite umurongo munini (agera kuri bandidth nini (kugeza 20-40nm) hamwe nimpeshyi ebyiri zijyanye na 1530nm.
Ibyiza nyamukuru bya EDFA ni inyungu nini, imiyoboro minini, ibisohoka hejuru, pompe ndende, igihombo gito, kwinjizamo ibice, nubushobozi buke bwo gusoza.
2. Ibibazo na fibre oplifiers
Nubwo amplifier ya oplifier (cyane cyane Edfa) ifite inyungu nyinshi zidasanzwe, ntabwo ari anyoni nziza. Usibye urusaku rwinyongera rugabanya snr yikimenyetso, hari ibindi bigizemonyobutabintu, nka:
- Unzevenness yo kunguka muri amplifier bandidth igira ingaruka kumikorere ya byinshi byongerera;
- Iyo amplifiers oplifiers yaka, ingaruka za ASE, ingaruka za ASE, Gutandukanya fibre hamwe ningaruka zidahari bizaterana.
Ibi bibazo bigomba gusuzumwa mubisabwa no gushushanya.
3. Gushyira mu bikorwa Amplifier Oplifier muri sisitemu yo mu itumanaho ya fibre
Muri sisitemu yo gutumanaho ya fibre, theFibre oplifier amplifierBirashobora gukoreshwa gusa nkimbaraga zo kuzamura igenamigambi kugirango wongere imbaraga zongerewe kugirango wongere imbaraga zo kunoza uburyo bwo kwakira ibintu, kandi birashobora no gusimbuza amashanyarazi ya Optique-Amashanyarazi, kugirango wongere intera yo kohereza kandi uzi neza itumanaho ryiza kandi rikamenya itumanaho ryiza.
Muri sisitemu yo gutumanaho fibre ya fibre, ibintu nyamukuru bigabanya intera yo kwandura ni igihombo no gutatanya fibre ya optique. Ukoresheje isoko yoroheje-spectrum, cyangwa gukora hafi yuburebure bwa zeru, ingaruka za fibre ya fibre ni nto. Sisitemu ntabwo ikeneye gukora igihe cyuzuye cyo kuvugurura (3R relay) kuri buri sitasiyo. Birahagije kongera ibimenyetso bya oplique hamwe na amplifier ya oplifier (1R). Ibisobanuro bya Oplifiers birashobora gukoreshwa muri sisitemu ndende gusa ahubwo no mubipimo bya fibre optique, cyane cyane muri sisitemu ya WDM, kugirango wongere imiyoboro myinshi icyarimwe.
1) Gushyira mubikorwa Amplifiers Oplifiers muri Trunk Optique Itumanaho rya Fiber
Igishushanyo cya 2 ni igishushanyo cya schematike cyo gusaba amplifier ya oplifier muri sisitemu nziza ya fibre nziza. . Kurugero, Kwemeza Edfa, Sisitemu Ikwirakwizwa Intera ya 1.8GB / s yiyongera kuri 120km kugeza 250km cyangwa igera kuri 400km. Igishushanyo 2 (b) - (d) ikoreshwa rya amplifiers oplifiers muri sisitemu nyinshi; Igishusho (b) nuburyo gakondo bwa 3r bwa relay; Igishushanyo (C) nuburyo butandukanye bwihariye bwa 3R yisubiramo na amplifiers oplifier; Igishushanyo 2 (D) Nuburyo bwose-optique yihariye; Muri sisitemu yo gutumanaho hose, ntabwo ikubiyemo imirongo yigihe no kuvugurura, niko bigufi, kandi nta "icupa rya elegitoroniki. Igihe cyose cyo kohereza no kwakira ibikoresho ku mpande zombi bisimburwa, biroroshye kuzamura bivuye ku gipimo gito, kandi amplifier oplifier ntabwo ikeneye gusimburwa.
2) Gushyira mubikorwa Amplifier Oplifier muri Optique yo gukwirakwiza fibre
Imbaraga nyinshi zisohora inyungu za oplifiers oplifiers (cyane cyane Edfa) ni ingirakamaro cyane mumiyoboro yagari kuri broundband (nkaCatvImiyoboro). Umuyoboro gakondo Catv wemeje umugozi wimana, ugomba gushimangirwa buri metero magana, hamwe na radiyo ya serivisi zurusobe ni 7km. Umuyoboro wa fibre cathel ukoresheje amplifiers oplifiers ntushobora kongera umubare wabakoresha ukwirakwijwe, ariko kandi wagutse cyane inzira y'urusobe. Iterambere rya vuba ryerekanye ko ikwirakwizwa rya fibre nziza / Hybrid (HFC) rikurura imbaraga za yombi kandi zifite irushanwa rikomeye.
Igishushanyo cya 4 nurugero rwa fibre ya fibre ya fibre ya fibre kuri am-vsb guhinduranya imiyoboro 35 ya TV. Inkomoko yoroheje ya transmitter ni DFB-ld hamwe nuburebure bwa 1550nm no gusohoka imbaraga za 3.3dbm. Gukoresha EDFA 4 EDFA nkikwirakwizwa ryingufu, imbaraga zayo zinjiza igera kuri -6dbm, nibisohoka byayo bigera kuri 13DBM. Optique yakiriye neza -9.2d bm. Nyuma yinzego 4 zo kugabura, umubare wabakoresha bose wageze kuri miliyoni 4.2, kandi inzira y'urusobe irarenze ibirometero mirongo. Ikigereranyo kiremereye-urusaku rw'ikizamini cyari kirenze 45DB, na Edfa ntibyateye kugabanuka kwa CSO.
Igihe cyo kohereza: APR-23-2023