Ngā tikanga whakarea whatu me tā rātou hononga mō te whakawhitiwhiti kōrero ā-maramara me te muka whatu

I whakaputa te rōpū rangahau a Ahorangi Khonina o te Institute of Image Processing Systems o te Russian Academy of Sciences i tētahi pepa ko "Ngā tikanga whakareatanga optical me tā rātou marena" i roto iOpto-HikoNgā whanaketanga mō te maramara-i-runga mewhakawhitiwhiti muka whatu: he arotake. Kua whakawhanakehia e te rōpū rangahau a Ahorangi Khonina ētahi huānga whatu whakarara hei whakatinana i te MDM i te wāhi kore utu, ā,muka whatu. Engari ko te whānui o te whatunga he rite ki te "kākahu ake", kāore e nui rawa, kāore e ranea. Kua hangaia e ngā rerenga raraunga he tono nui mō ngā waka. Kei te whakakapia ngā karere īmēra poto e ngā whakaahua pakiwaituhi e tango ana i te whānui. Mō ngā whatunga raraunga, ataata me te reo i ngā tau torutoru noa iho kua pahure ake nei he nui te whānui, kei te titiro ngā mana whakawhitiwhiti kōrero ki te tango i tētahi huarahi rerekē hei whakatutuki i te tono mutunga kore mō te whānui. I runga i tōna wheako whānui i roto i tēnei mara rangahau, i whakarapopototia e Ahorangi Khonina ngā whanaketanga hou me ngā mea nui rawa atu i roto i te mara o te multiplexing i te mea pai rawa atu i taea e ia. Ko ngā kaupapa i hipokina i roto i te arotake ko te WDM, PDM, SDM, MDM, OAMM, me ngā hangarau ranu e toru o te WDM-PDM, WDM-MDM, me te PDM-MDM. I roto i aua mea, mā te whakamahi i tētahi multiplexer ranu WDM-MDM anake, ka taea te whakatutuki i ngā hongere N×M mā roto i ngā roangaru N me ngā aratau aratohu M.

I whakatūria te Institute of Image Processing Systems of the Russian Academy of Sciences (IPSI RAS, he peka inaianei o te Federal Scientific Research Center of the Russian Academy of Sciences "Crystallography and Photonics") i te tau 1988 i runga i te kaupapa o tētahi rōpū rangahau i te Whare Wānanga o te Kāwanatanga o Samara. Ko Victor Alexandrovich Soifer te kaiārahi o te rōpū, he mema nō te Russian Academy of Sciences. Ko tētahi o ngā huarahi rangahau a te rōpū rangahau ko te whakawhanake i ngā tikanga tau me ngā rangahau whakamātautau o ngā hihi laser maha-hongere. I tīmata ēnei rangahau i te tau 1982, i te wā i whakatinanahia ai te huānga whatu maha-hongere tuatahi (DOE) i te mahi tahi me te rōpū o te Nobel Laureate i roto i te ahupūngao, te Academician Alexander Mikhailovich Prokhorov. I ngā tau i muri mai, i whakaarohia, i whakatauirahia, i akohia hoki e ngā kaipūtaiao IPSI RAS ngā momo huānga DOE maha i runga i ngā rorohiko, kātahi ka hangaia i roto i te āhua o ngā hologram āhuahanga me ngā tauira laser whakawhiti rite tonu. Ko ētahi tauira ko ngā awhiowhio whatu, te aratau Lacroerre-Gauss, te aratau Hermi-Gauss, te aratau Bessel, te mahi Zernick (mō te tātaritanga hapa), me ētahi atu. Ko tēnei DOE, i hangaia mā te whakamahi i te whakaahua hiko, ka whakamahia ki te tātaritanga hihi i runga i te wehewehenga aratau whatu. Ka whiwhihia ngā hua ine i roto i te ahua o ngā tihi hononga i ētahi pūwāhi (ngā ota diffraction) i roto i te papa Fourier o tepūnaha whatu. I muri mai, i whakamahia te kaupapa matua hei whakaputa i ngā hihi matatini, tae atu ki ngā hihi wetewete i ngā hihi i roto i ngā muka whatu, te wāhi kore utu, me ngā pāpāho taupatupatu mā te whakamahi i te DOE me te wāhi ā-wāhi.Ngā whakarerekētanga whatu.