Usoro multiplexing anya na alụmdi na nwunye ha maka on-chip: nyocha

Usoro multiplexing anya na alụmdi na nwunye ha maka on-chip nankwurịta okwu eriri anya: nyocha

Usoro multiplexing optical bụ isiokwu nyocha dị mkpa, ndị ọkà mmụta n'ụwa niile na-emekwa nnyocha miri emi n'ọhịa a. Kemgbe ọtụtụ afọ, a tụpụtala ọtụtụ teknụzụ multiplex dị ka wavelength division multiplexing (WDM), mode division multiplexing (MDM), space division multiplexing (SDM), polarization multiplexing (PDM) na orbital angular momentum multiplexing (OAMM). Teknụzụ Wavelength division multiplexing (WDM) na-enye ohere ka e bufee akara optical abụọ ma ọ bụ karịa nke wavelength dị iche iche n'otu oge site na otu eriri, na-eji njirimara obere mfu nke eriri ahụ eme ihe nke ọma na nnukwu wavelength. Delange bu ụzọ tụpụta echiche a na 1970, ọ bụghịkwa ruo 1977 ka nchọpụta bụ isi nke teknụzụ WDM malitere, nke lekwasịrị anya na ngwa nke netwọk nkwukọrịta. Kemgbe ahụ, na mmepe na-aga n'ihu nkeeriri anya, isi iyi ọkụ, ihe nchọpụta fotona mpaghara ndị ọzọ, nchọpụta ndị mmadụ na teknụzụ WDM amụbaala ngwa ngwa. Uru nke polarization multiplexing (PDM) bụ na enwere ike ịba ụba ọnụọgụ nke nnyefe mgbaàmà, n'ihi na enwere ike kesaa akara abụọ nọọrọ onwe ha na ọnọdụ polarization orthogonal nke otu ọkụ ahụ, a na-ekewakwa ọwa polarization abụọ ahụ ma chọpụta ha n'onwe ha na njedebe nnata.

Ka ọchịchọ maka ọnụego data dị elu na-aga n'ihu na-eto, a mụọla nke ọma oke nnwere onwe nke multiplexing, oghere, n'ime afọ iri gara aga. N'ime ha, a na-emepụta multiplexing nkewa mode (MDM) site na ndị na-ebuga N, nke a na-enweta site na spatial mode multiplexer. N'ikpeazụ, a na-ebufe mgbaàmà nke ọnọdụ spatial na-akwado na eriri ala-mode. N'oge mgbasa mgbaàmà, a na-emeso ụdị niile dị n'otu ogologo ebili mmiri dị ka otu nke Space Division multiplexing (SDM) super channel, ya bụ, a na-eme ka ha dịkwuo elu, belata ma tinye ha n'otu oge, na-enweghị ike iru nhazi mode dị iche. Na MDM, a na-ekenye contours oghere dị iche iche (ya bụ, ụdị dị iche iche) nke ụkpụrụ na ọwa dị iche iche. Dịka ọmụmaatụ, a na-eziga ọwa n'elu oghere laser nke dị ka triangle, square, ma ọ bụ okirikiri. Ụdị ndị MDM ji na ngwa ụwa n'ezie dị mgbagwoju anya karịa ma nwee njirimara mgbakọ na mwepụ na anụ ahụ pụrụ iche. Teknụzụ a bụ ihe a na-arụ ụka na ọ bụ ihe kachasị ọhụrụ na nnyefe data fiber optic kemgbe afọ 1980. Teknụzụ MDM na-enye atụmatụ ọhụrụ iji mejuputa ọwa ndị ọzọ ma mụbaa ikike njikọ site na iji otu onye na-ebu ibu ogologo ebili mmiri. Orbital angular momentum (OAM) bụ njirimara anụ ahụ nke ebili mmiri electromagnetic ebe ụzọ mgbasa ozi na-esi site na ụzọ helical phase wavefront kpebie. Ebe ọ bụ na enwere ike iji atụmatụ a guzobe ọtụtụ ọwa dị iche iche, ikuku orbital angular momentum multiplexing (OAMM) nwere ike ịbawanye ọnụego nnyefe nke ọma na nnyefe dị elu (dịka backhaul ikuku ma ọ bụ gaa n'ihu).