Mukutsvaga nekuvandudza matekinoroji matsva e optical fiber, SDM space division multiplexing yakakwezva kutariswa kukuru. Kune nzira mbiri huru dzekushandisa SDM mu optical fibers: core division multiplexing (CDM), apo kutumira kunoitwa kuburikidza nepakati pe multi-core optical fiber. Kana Mode Division Multiplexing (MDM), iyo inotumira kuburikidza nenzira dzekuparadzira dze few-mode kana multi-mode fiber.
Nharembozha yeCore Division Multiplexing (CDM) inonyanya kushandiswa pakushandisa zvirongwa zviviri zvikuru.
Chekutanga chakavakirwa pakushandiswa kwema "single-core fiber bundles" (fiber ribbons), umo ma "parallel single-mode fibers" anounganidzwa pamwe chete kuti aumbe ma "fiber bundles" kana kuti ma "ribbons" anogona kupa mazana e "parallel link".
Sarudzo yechipiri yakavakirwa pakutumira data pamusoro pechinhu chimwe chete (mode imwe chete pachinhu chimwe nechimwe) chakaiswa mufiber imwechete, kureva kuti mufiber yeMCF multicore. Chinhu chimwe nechimwe chinoonekwa senzira imwe chete yakasiyana.
MDM (Module Division Multiplexing) fiber inoreva kutapurirana kwedata pamusoro pemhando dzakasiyana dze optical fiber, imwe neimwe inogona kuonekwa senzira yakasiyana.
Mhando mbiri dzakajairika dzeMDM imultimode fiber (MMF) nefractional mode fiber (FMF). Musiyano mukuru pakati pezviviri izvi inhamba yemamodhi (anowanikwa nzira). Sezvo maMMF achigona kutsigira huwandu hwakawanda hwemamodhi (makumi emamodhi), intermodal crosstalk uye differential mode group delay (DMGD) zvinova zvakakosha.
Kunewo photonic crystal fiber (PCF) inogona kunzi ndeyerudzi urwu. Yakavakirwa pahunhu hwemakristaro ephotonic, ayo anovhara chiedza kuburikidza ne bandgap effect uye anochiendesa achishandisa maburi emhepo ari muchikamu chayo. PCF inonyanya kugadzirwa nezvinhu zvakaita seSiO2, As2S3, nezvimwewo, uye maburi emhepo anounzwa munzvimbo yakatenderedza core kuitira kuchinja musiyano uripo pakati pecore necladding.
CDM fiber inogona kutsanangurwa sekungowedzerwa kwema "parallel single-mode fiber cores" anotakura ruzivo, akaiswa mu "cladding" imwechete (multi-core fiber MCF kana single-core fiber bundle). MDM mode division multiplexing kushandiswa kwema "multiple spatial-optical modes" mu "transmission medium" se "individual/separate/independent data channels", kazhinji kune "short-distance" interconnected transmission.
Nguva yekutumira: Chikumi-26-2025