1. Kuiswa kweFiberAMplifiers
Kune matatu marudzi makuru emhando dzezvisikwa amplifiers:
(1) Semiconductor Optical Amplifier (SOA, Semiconductor Optical Amplifier);
(2) Optical Fiber AMPLIFILE DEPED NEMAHARA PANE zvinhu (erium Er, thulium tm, praseodymium pr, rubidymium pr, rubidymin nd, kunyanya erbium-tiled erber amplifiers (Edfa), pamwe neThelium-Dided Fiber Amplifiers (TDFA) uye PDSEDYMIUM-DIPED FIBER AMPLIFILE (PDFA), ETFA), nezvimwe.
. Iyo huru yekuenzanisa kwezvienzanisirwo yeaya Optical Amplifiers inoratidzwa patafura
Edfa (erbium yakarova fiber amplifier)
A akawanda-mwero laser system inogona kuumbwa ne-quarz fiber ine nguva isingawanzoita pasi zvinhu (zvakadai seNN, Mushure mekupa mhinduro dzakakodzera, fiber laser inoumbwa. Iyo inoshanda wavelength yeiyo ND-DEPED FIBER AMPLIFIFER ndeye 1060nm uye 1330nm uye application uye application inoganhurwa kubva kune yakanyanya kutsauka portic yekutaurirana kweFiber nezvimwe zvikonzero. Iyo yekushandisa wavelength yeEdfa uye pdfa iri muhwindo reiyo yakaderera kurasikirwa (1550nm) uye tdfa inoshanda mu-svutugadzike Kunyanya edfa, kukurumidza kukura, kwave kuchishanda.
The thePrinciple yeEdfa
Chimiro chekutanga cheEdfa chinoratidzwa mumufananidzo Signal Chiedza uye Pombi Chiedza chinogona kuparadzaniswa nenzira imwechete (codirectional pumping), zvakatarisana nemhepo (kudzoreredza kupomba) kana mbiri dzekupomba) muErbium fiber. Kana chiratidzo chechiratidzo uye chiedza chepombi chinopinda mu erbium fiber panguva imwe chete, kana kuora chikamu chemagetsi. " Mufananidzo 1.
Zvakanakisa zvakanakira Edfa zvinowana zvakakwirira, bandwidth bandwidth, yakakwirira yekubuda simba simba, yakakwira pombi yekubudirira, kurasikirwa kwakaderera kwekuisa, uye kusagadzikana kune polizarization nyika.
2. Zvinetso neFiber Optical Amplifiers
Kunyangwe iyo Optical Amplifier (kunyanya edfa) ine zvakawanda zvakanakira zvakanaka, hazvisi zvakanaka amplifier. Pamusoro peiyo ruzha rwekuwedzera runoderedza iyo STR yechiratidzo, pane zvimwe zvikanganiso, zvakadai se:
- Kusina kusakwana kweiyo kuwana mari yekufunga mukati me amplifier bandwidth inokanganisa midzi yakawanda yekukwirisa
- Kana Optical amplifiers inoshanduka, mhedzisiro yemheremhere yeAse, kupararira kwemafuta uye nonline miganhu inounganidza.
Idzi nyaya dzinofanira kutariswa mukushandisa uye system system.
3. Kushandiswa kweOplifier Inplifier In Optical Fiber Kukurukurirana System
Mune Optical fiber kutaurirana system, iyoFiber Optical AmplifierInogona kushandiswa kwete chete seyo simba rinowedzera kuwedzera kwesimba kuti uwedzere simba rekutapurirana
Mune Optical fiber kutaurirana masisitimu, zvinhu zvikuru zvinodzivirisa chinhambwe chinhambwe ndechekurasikirwa uye kupararira kweiyo Optical fiber. Kushandisa nzvimbo yakatetepa yechiedza, kana kushanda padhuze ne zero-kupararira wavelength, pesvedzero yekupararira fiber idiki. Iyi sisitimu haidi kuita zvakazara chiratidzo nguva yekuzivisa (3r kudzokorora) pachiteshi chega chega. Izvo zvakakwanira zvakananga zvakananga chiratidzo chechiratidzo chine Optical amplifier (1r yekudzokorora). Optical Amplifiers inogona kushandiswa kwete chete mune refu-kureba trunk system asiwo mune Optical Fiber Disting Networks, kunyanya muWDM Systems, kuti isvike rakawanda nzira panguva imwe chete.
1) Kushandiswa kweye Optical Amplifiers mune trunk Optical fiber kutaurirana masisitimu
Figu. . Semuenzaniso, kutora Edfa, iyo System Kuendeswa Distance of 1,8gb / s inowedzera kubva ku200km kusvika ku25km kana kunyange inosvika 400km. Mufananidzo 2 (B) - (d) Iko kushandiswa kweOplifies Amplifiers muhurongwa hwakawanda. Mufananidzo (B) ndiyo tsika yetsika 3r yekudzokorora maitiro; Mufananidzo (C) ndiyo yakasanganiswa yeRex mode ye 3R inodzokorora uye Optical Amplifiers; Mufananidzo 2 (d) Icho chiri zvese-Optical recay maitiro; Mune ese-Optical yekutaurirana system, hazvibatanidzi zvitoro zvekutaurirana uye zvekuwedzera, saka zvishoma-zvakajeka, uye hapana "isina" bhodhoro rezvemagetsi "zvinorambidzwa. Chero bedzi kutumira uye kugashira midziyo pamigumo yose inotsiviwa, zviri nyore kukwidziridza kubva kune yakaderera chiyero kune yakakwira chiyero, uye iyo Optical amplifier haidi kutsiviwa.
2) Kushandiswa kweye Optical Amplifier mune Optical Fiber Distribution Network
Iyo yakakwira simba rinobuda zvakanaka zve-optical amplifiers (kunyanya edfa) anobatsira kwazvo mumabroband babyband sabicks (sengeCATVNetwork). Iyo tsika yekatsi yekatsi inogamuchira coable coble, inoda kuumbwa metres imwe neimwe yemamita, uye service radius yeti network ndeyekuti 7km. Iyo Optical Fiber Catv Network uchishandisa Optical Amplifiers haigone kungowedzera huwandu hwevashandisi vakaparadzirwa, asi zvakare nekuwedzera nzira yetiweki. Zviitiko zvazvino zvave zvichangobva kuitika zvakaratidza kuti kugoverwa kweye Optical fiber / hfcd (hfc) inokwevera masimba ezvese uye ane kukwikwidza kwakasimba.
Mufananidzo 4 muenzaniso weiyo Optical Fiber Distribution network ye AM-vsb modulation yemakumi matatu nenhasi yeTV. Iyo yechiedza sosi ye transmitter is dfb-ld ine wavelength ye1550nm uye inobuda simba re 3.3DBM. Uchishandisa 4-Level Edfa seSimba Distriution Amplifier, simba rayo rekuisa riri pamusoro pe -6dbm, uye simba raro rinobuda rinenge 13DBM. Optical Receiver Sensitivity -9.2d BM. Mushure memazinga mana ekugoverwa, huwandu hwese hwevashandisi hwasvitsa mamirioni 4,2, uye nzira yetiweki inopfuura makumi emakiromita emakiromita. Iyo inorema chiratidzo-ruzha rateo yebvunzo yaive yakakura kupfuura 45db, uye edfa haina kukonzera kuderedzwa kwaCSO.
Tumira nguva: Kubvumbi-23-2023