Amasu okuhlanganisa ama-optical kanye nobudlelwano bawo bokuxhumana nge-on-chip kanye ne-optical fiber

Ithimba locwaningo likaSolwazi Khonina ovela kwi-Institute of Image Processing Systems ye-Russian Academy of Sciences lishicilele iphepha elinesihloko esithi “Optical multiplexing techniques and their marriage” kuI-Opto-ElectronicIntuthuko ye-on-chip kanyeukuxhumana ngefayibha yokukhanya: isibuyekezo. Iqembu locwaningo likaProfesa Khonina lithuthukise izakhi eziningana ze-diffractive optical zokusebenzisa i-MDM endaweni ekhululekile kanyei-fiber optics. Kodwa i-bandwidth yenethiwekhi ifana "nekhabethe lakho", ayikaze ibe nkulu kakhulu, ayikaze yanele. Ukugeleza kwedatha kudale isidingo esikhulu sethrafikhi. Imiyalezo emifushane ye-imeyili ithathelwa indawo yizithombe ezinyakazayo ezithatha i-bandwidth. Kumanethiwekhi edatha, amavidiyo kanye nokusakaza ngezwi eminyakeni embalwa edlule ayene-bandwidth eningi, iziphathimandla zokuxhumana manje zifuna ukuthatha indlela engajwayelekile yokuhlangabezana nesidingo esingapheli se-bandwidth. Ngokusekelwe kokuhlangenwe nakho kwakhe okukhulu kulo mkhakha wocwaningo, uSolwazi Khonina ufingqe intuthuko yakamuva nebaluleke kakhulu emkhakheni we-multiplexing ngangokunokwenzeka. Izihloko ezihlanganiswe ekubuyekezweni zifaka phakathi i-WDM, i-PDM, i-SDM, i-MDM, i-OAMM, kanye nobuchwepheshe obuthathu obuhlanganisiwe be-WDM-PDM, i-WDM-MDM, kanye ne-PDM-MDM. Phakathi kwazo, kuphela ngokusebenzisa i-multiplexer ye-WDM-MDM ehlanganisiwe, iziteshi ze-N×M zingatholakala ngama-wavelengths e-N kanye nezindlela zomhlahlandlela we-M.

I-Institute of Image Processing Systems ye-Russian Academy of Sciences (i-IPSI RAS, manje eseyigatsha le-Federal Scientific Research Center ye-Russian Academy of Sciences “Crystallography and Photonics”) yasungulwa ngo-1988 ngesisekelo seqembu locwaningo eSamara State University. Leli qembu liholwa nguVictor Alexandrovich Soifer, ilungu le-Russian Academy of Sciences. Enye yezinkomba zocwaningo zeqembu locwaningo ukuthuthukiswa kwezindlela zezinombolo kanye nezifundo zokuhlola zemisebe ye-laser yeziteshi eziningi. Lezi zifundo zaqala ngo-1982, lapho i-multi-channel diffracted optical element yokuqala (DOE) yaqalwa ngokubambisana nethimba le-Nobel Laureate kwi-physics, i-Academician u-Alexander Mikhailovich Prokhorov. Eminyakeni eyalandela, ososayensi be-IPSI RAS baphakamisa, balingisa futhi bafunda izinhlobo eziningi zezinto ze-DOE kumakhompyutha, base bezisungula ngesimo sama-hologram ahlukahlukene esigaba abekwe phezulu anamaphethini e-laser ahambisanayo. Izibonelo zifaka phakathi ama-vortices e-optical, imodi ye-Lacroerre-Gauss, imodi ye-Hermi-Gauss, imodi ye-Bessel, umsebenzi we-Zernick (wokuhlaziywa kwe-aberration), njll. Le DOE, eyenziwe kusetshenziswa i-electron lithography, isetshenziswa ekuhlaziyweni kwemisebe ngokusekelwe ekuqhekekeni kwemodi ye-optical. Imiphumela yokulinganisa itholakala ngesimo seziqongo zokuhlobana ezindaweni ezithile (ama-diffraction orders) endizeni ye-Fourier ye-uhlelo lwe-opticalNgemva kwalokho, lesi simiso sasetshenziswa ukukhiqiza imishayo eyinkimbinkimbi, kanye nokususa imishayo eminingi emicu ye-optical, isikhala esikhululekile, kanye nemidiya eguquguqukayo kusetshenziswa i-DOE kanye ne-spatialAma-modulators optical.