Mekhoa ea Optical multiplexing le lenyalo la bona bakeng sa on-chip: tlhahlobo

Mekhoa ea Optical multiplexing le lenyalo la bona bakeng sa on-chip lepuisano ea fiber ea optical: tlhahlobo

Mekhoa ea Optical multiplexing ke sehlooho sa lipatlisiso se potlakileng, 'me litsebi lefats'eng lohle li etsa lipatlisiso tse tebileng lefapheng lena. Ho theosa le lilemo, mekhoa e mengata ea theknoloji ea multiplex e kang wavelength division multiplexing (WDM), mode division multiplexing (MDM), space division multiplexing (SDM), polarization multiplexing (PDM) le orbital angular momentum multiplexing (OAMM) e hlahisitsoe. Theknoloji ea Wavelength division multiplexing (WDM) e nolofalletsa lipontšo tse peli kapa ho feta tsa optical tsa wavelengths tse fapaneng hore li fetisetsoe ka nako e le 'ngoe ka fiber e le' ngoe, ho sebelisa ka botlalo litšobotsi tse fokolang tsa fiber ka har'a leqhubu le leholo la maqhubu. Khopolo ena e ile ea hlahisoa ka lekhetlo la pele ke Delange ka 1970, 'me ho fihlela ka 1977 lipatlisiso tsa motheo tsa theknoloji ea WDM li qalile, tse neng li lebisitse tlhokomelo ea tšebeliso ea marang-rang a puisano. Ho tloha ka nako eo, ka tsoelo-pele e tsoelang pele eafiber ea optical, mohloli o khanyang, photodetectorle mafapha a mang, tlhahlobo ea batho ea theknoloji ea WDM le eona e potlakile. Monyetla oa polarization multiplexing (PDM) ke hore palo ea phetisetso ea matšoao e ka atolosoa, hobane matšoao a mabeli a ikemetseng a ka ajoa sebakeng sa orthogonal polarization ea lebone le le leng la leseli, 'me likanale tse peli tsa polarization li arohanngoa mme li khetholloa ka boikemelo pheletso ya ho amohela.

Ha tlhokahalo ea litekanyetso tse phahameng tsa data e ntse e eketseha, tekanyo ea ho qetela ea tokoloho ea multiplexing, sebaka, e 'nile ea ithutoa ka matla lilemong tse leshome tse fetileng. Har'a bona, mokhoa oa ho arola multiplexing (MDM) o hlahisoa haholo ke li-transmitters tsa N, tse lemohuoang ke multiplexer mode multiplexer. Qetellong, letšoao le tšehetsoeng ke mokhoa oa sebaka sa sebaka se fetisetsoa ho fiber e tlaase. Nakong ea phatlalatso ea mats'oao, mekhoa eohle e bophahamong bo le bong e ts'oaroa e le yuniti ea "Space Division multiplexing" (SDM) super channel, ke hore, e matlafatsoa, ​​​​e fokotsoa le ho eketsoa ka nako e le 'ngoe, ntle le ho khona ho finyella ts'ebetso e fapaneng ea mokhoa. Ho MDM, li-contours tse fapaneng tsa sebaka (ke hore, libopeho tse fapaneng) tsa paterone li abeloa likanale tse fapaneng. Ka mohlala, mocha o romelloa ka holim'a lebone la laser le bōpehileng joaloka khutlo-tharo, sekwere, kapa selikalikoe. Libopeho tse sebelisoang ke MDM lits'ebetsong tsa sebele tsa lefats'e li rarahane ho feta 'me li na le litšobotsi tse ikhethang tsa lipalo le tsa' mele. Theknoloji ena ha ho pelaelo hore ke phetoho e kholo ka ho fetisisa phetisong ea data ea fiber optic ho tloha ka bo-1980. Theknoloji ea MDM e fana ka leano le lecha la ho kenya ts'ebetsong liteishene tse ngata le ho eketsa bokhoni ba khokahanyo ho sebelisa mochine o le mong oa maqhubu. Orbital angular momentum (OAM) ke tšobotsi ea 'mele ea maqhubu a motlakase moo tsela ea phatlalatso e khethoang ke leqhubu la helical phase wavefront. Kaha tšobotsi ena e ka sebelisoa ho theha likanale tse ngata tse arohaneng, mohala o se nang mohala oa orbital angular momentum multiplexing (OAMM) o ka eketsa ka katleho sekhahla sa phetisetso ho li-transmissions tse phahameng ho isa ho tse ling (tse kang wireless backhaul kapa pele).