Phuputsong le nts'etsopele ea theknoloji e ncha ea optical fiber, SDM space division multiplexing e hohetse tlhokomelo e kholo.Ho na le litsela tse peli tse ka sehloohong bakeng sa tšebeliso ea SDM ka li-optical fibres: core division multiplexing (CDM), moo phetisetso e etsoang ka mokokotlo oa li-multi-core optical fiber. Kapa Mode Division Multiplexing (MDM), e fetisang ka mekhoa ea phatlalatso ea mefuta e fokolang kapa ea mefuta e mengata.
Core Division Multiplexing (CDM) fiber e thehiloe holima ts'ebeliso ea merero e 'meli e meholo.
Ea pele e ipapisitse le ts'ebeliso ea likhoele tsa fiber e le 'ngoe (liribone tsa fiber), moo likhoele tse bapileng tsa mofuta o le mong li kenngoeng hammoho ho etsa likhoele tsa likhoele kapa liribone tse ka fanang ka likhokahano tse bapileng tse makholo.
Khetho ea bobeli e ipapisitse le ho fetisa data holim'a konokono e le 'ngoe (mokhoa o le mong ka konokono) e kentsoeng ka har'a fiber e tšoanang, ke hore ho MCF multicore fiber. Mokotla o mong le o mong o nkuoa e le mocha o le mong o arohaneng.
MDM (Module Division Multiplexing) fiber e bolela ho fetisoa ha data ka mekhoa e fapaneng ea fiber ea optical, e 'ngoe le e' ngoe ea eona e ka nkoang e le mocha o arohaneng.
Mefuta e 'meli e tloaelehileng ea MDM ke fiber ea multimode (MMF) le fiberal mode fiber (FMF). Phapang e kholo lipakeng tsa tse peli ke palo ea mekhoa (likanale tse teng). Kaha li-MMF li ka tšehetsa palo e kholo ea mekhoa (mekhoa ea mashome), intermodal crosstalk le differential mode group delay (DMGD) e ba ea bohlokoa.
Hape ho na le photonic crystal fiber (PCF) eo ho ka thoeng ke ea mofuta ona. E itšetlehile ka thepa ea likristale tsa photonic, tse thibelang khanya ka phello ea bandgap le ho e fetisetsa ho sebelisa masoba a moea ka har'a cross-section.PCF haholo-holo e entsoeng ka thepa e kang SiO2, As2S3, joalo-joalo, 'me masoba a moea a hlahisoa sebakeng se pota-potileng mokokotlo e le hore ho fetole phapang pakeng tsa mantlha le ho koala.
CDM fiber e ka hlalosoa e le feela ho eketsoa ha li-fiber cores tse ts'oanang tsa mokhoa o le mong tse tsamaisang tlhahisoleseding, tse kenngoeng ka har'a cladding e tšoanang (multi-core fiber MCF kapa single-core fiber bundle) .MDM mode division multiplexing ke tšebeliso ea mekhoa e mengata ea sebaka sa marang-rang sebakeng sa phetisetso e le liteishene tsa data ka bomong / tse arohaneng / tse ikemetseng, hangata bakeng sa ho kopana ha nako e khutšoanyane.
Nako ea poso: Jun-26-2025