Phuputsong le nts'etsopele ea mahlale a macha a faeba ea optical, ho kopanya sebaka sa SDM ho hohetse tlhokomelo e kholo. Ho na le litsela tse peli tse ka sehloohong tsa ts'ebeliso ea SDM ho lifaeba tsa optical: ho kopanya karolo ea mantlha (CDM), moo phetiso e etsoang ka har'a karolo ea mantlha ea faeba ea optical ea multi-core. Kapa Mode Division Multiplexing (MDM), e fetisang ka mekhoa ea ho jala ea faeba ea mekhoa e seng mekae kapa ea mekhoa e mengata.
Ha e le hantle, faeba ya Core Division Multiplexing (CDM) e itshetlehile hodima tshebediso ya merero e mmedi e meholo.
Ea pele e thehiloe tšebelisong ea liphutheloana tsa faeba tse nang le motheo o le mong (liribone tsa faeba), moo likhoele tsa mokhoa o le mong tse tsamaeang ka tsela e le 'ngoe li kopanngoang hammoho ho etsa liphutheloana tsa faeba kapa liribone tse ka fanang ka lihokelo tse fihlang ho makholo tse tsamaeang ka tsela e tšoanang.
Khetho ea bobeli e thehiloe ho fetiseng data holim'a motheo o le mong (mokhoa o le mong ka motheo) o kenngoeng ka har'a faeba e tšoanang, ke hore, ka har'a faeba ea MCF multicore. Motheo o mong le o mong o tšoaroa e le kanale e le 'ngoe e arohaneng.
Faeba ya MDM (Module Division Multiplexing) e bolela phetiso ya data hodima mekgwa e fapaneng ya faeba ya optical, eo e nngwe le e nngwe ya yona e ka nkuwang e le kanale e arohaneng.
Mefuta e 'meli e tloaelehileng ea MDM ke fiber ea multimode (MMF) le fiber ea fractional mode (FMF). Phapang e kholo lipakeng tsa tse peli ke palo ea mekhoa (likanale tse fumanehang). Kaha li-MMF li ka tšehetsa palo e kholo ea mekhoa (mashome a mekhoa), intermodal crosstalk le differential mode group delay (DMGD) li ba bohlokoa.
Hape ho na le faeba ya kristale ya photonic (PCF) e ka thweng ke ya mofuta ona. E itshetlehile hodima thepa ya kristale ya photonic, e thibelang lesedi ka phello ya bandgap mme e le fetisetsa ka ho sebedisa masoba a moya karolong ya yona e tshekaletseng. PCF e entswe haholo ka thepa e kang SiO2, As2S3, jj., mme masoba a moya a kenngwa sebakeng se potileng karolo e ka hare ho fetola phapang ho index ya refractive pakeng tsa karolo e ka hare le cladding.
Faeba ya CDM e ka hlaloswa e le feela ho eketswa ha di-core tsa faeba tsa mokgwa o le mong tse tsamaisanang tse jereng tlhahisoleseding, tse kentsweng ka hara cladding e le nngwe (multi-core faeba MCF kapa sephuthelwana sa faeba sa mantlha o le mong). Ho arola mokgwa wa MDM karohano ke tshebediso ya mekgwa e mengata ya sebaka-mahlasedi mokgahlelong wa phetiso e le dikanale tsa data tsa motho ka mong/tse arohaneng/tse ikemetseng, hangata bakeng sa phetiso e hokahaneng ya sebaka se sekgutshwane.
Nako ea poso: Phuptjane-26-2025