Cov txheej txheem optical multiplexing thiab lawv txoj kev sib yuav rau kev sib txuas lus ntawm on-chip thiab optical fiber

Cov pab pawg tshawb fawb ntawm Prof. Khonina los ntawm Lub Tsev Kawm Ntawv ntawm Cov Txheej Txheem Ua Duab ntawm Lavxias Academy of Sciences tau luam tawm ib daim ntawv hu ua "Optical multiplexing techniques and their marriage" hauvOpto-ElectronicKev nce qib rau on-chip thiabkev sib txuas lus fiber ntau: kev tshuaj xyuas. Pawg tshawb fawb ntawm Xibfwb Khonina tau tsim ntau yam khoom siv kho qhov muag diffractive rau kev siv MDM hauv qhov chaw dawb thiabcov khoom siv fiber optic. Tiam sis bandwidth ntawm lub network zoo li "tus kheej lub txee khaub ncaws", yeej tsis loj dhau, yeej tsis txaus. Cov ntaub ntawv ntws tau tsim kom muaj kev thov ntau heev rau kev khiav tsheb. Cov lus email luv luv raug hloov los ntawm cov duab animated uas siv bandwidth. Rau cov ntaub ntawv, video thiab lub suab tshaj tawm network uas tsuas yog ob peb xyoos dhau los muaj ntau bandwidth, cov tub ceev xwm sib txuas lus tam sim no tab tom nrhiav kev siv txoj hauv kev tsis zoo los ua kom tau raws li qhov kev thov tsis kawg rau bandwidth. Raws li nws qhov kev paub dhau los hauv thaj chaw tshawb fawb no, Xibfwb Khonina tau sau cov kev nce qib tshiab thiab tseem ceeb tshaj plaws hauv thaj chaw ntawm multiplexing kom zoo tshaj plaws nws ua tau. Cov ncauj lus uas tau hais hauv kev tshuaj xyuas suav nrog WDM, PDM, SDM, MDM, OAMM, thiab peb lub tshuab sib xyaw ntawm WDM-PDM, WDM-MDM, thiab PDM-MDM. Ntawm lawv, tsuas yog siv hybrid WDM-MDM multiplexer, N × M channels tuaj yeem paub los ntawm N wavelengths thiab M guide modes.

Lub Koom Haum ntawm Cov Txheej Txheem Ua Duab ntawm Lavxias Academy of Sciences (IPSI RAS, tam sim no yog ib ceg ntawm Federal Scientific Research Center ntawm Lavxias Academy of Sciences "Crystallography thiab Photonics") tau tsim muaj xyoo 1988 los ntawm ib pawg neeg tshawb fawb ntawm Samara State University. Pab neeg no yog coj los ntawm Victor Alexandrovich Soifer, ib tug tswv cuab ntawm Lavxias Academy of Sciences. Ib qho ntawm cov lus qhia tshawb fawb ntawm pab pawg tshawb fawb yog kev tsim cov txheej txheem lej thiab kev tshawb fawb sim ntawm ntau lub teeb laser. Cov kev tshawb fawb no tau pib xyoo 1982, thaum thawj lub teeb pom kev zoo ntau lub channel (DOE) tau ua tiav los ntawm kev koom tes nrog pab pawg ntawm Nobel Laureate hauv physics, Academician Alexander Mikhailovich Prokhorov. Hauv xyoo tom qab ntawd, cov kws tshawb fawb IPSI RAS tau thov, simulated thiab kawm ntau hom DOE ntawm cov khoos phis tawj, thiab tom qab ntawd tsim lawv ua daim ntawv ntawm ntau yam superimposed phase holograms nrog cov qauv laser transverse sib xws. Piv txwv li muaj xws li optical vortices, Lacroerre-Gauss hom, Hermi-Gauss hom, Bessel hom, Zernick muaj nuj nqi (rau kev tshuaj xyuas aberration), thiab lwm yam. Qhov DOE no, ua los ntawm kev siv electron lithography, yog siv rau kev tshuaj xyuas beam raws li kev rhuav tshem hom optical. Cov txiaj ntsig ntsuas tau txais los ntawm daim ntawv ntawm cov correlation peaks ntawm qee qhov chaw (diffraction orders) hauv Fourier dav hlau ntawmlub cev kho qhov muagTom qab ntawd, lub hauv paus ntsiab lus tau siv los tsim cov kab teeb meem nyuaj, nrog rau cov kab teeb meem demultiplexing hauv cov fibers optical, qhov chaw dawb, thiab cov xov xwm turbulent siv DOE thiab spatialCov khoom siv kho qhov muag.