Mwa kuwongolera gawo la unit beam mu beam array, ukadaulo wa optical phased array ukhoza kupanga kukonzanso kapena kulamulira molondola kwa array beam isopic plane. Uli ndi ubwino wa voliyumu yaying'ono ndi kulemera kwa dongosolo, liwiro loyankha mwachangu komanso khalidwe labwino la beam.
Mfundo yogwira ntchito ya ukadaulo wa optical phased array ndikusintha bwino (kapena kuchedwetsa) chizindikiro cha chinthu choyambira chomwe chimakonzedwa motsatira lamulo linalake kuti chipeze kupotoka kwa mzere wa array. Malinga ndi tanthauzo lomwe lili pamwambapa, ukadaulo wa optical phased array umaphatikizapo ukadaulo wa large-angle beam deflection wa ma beam emission arrays ndi ukadaulo wa array telescope interference imaging wa zithunzi zapamwamba za zigoli zakutali.
Kuchokera pamalingaliro a emission, optical phased array ndikuwongolera gawo la array transmitted beam, kuti azindikire kupotoka konse kwa array beam kapena phase error compensation. Mfundo yayikulu ya optical phased array ikuwonetsedwa mu Chithunzi 1. Chithunzi 1 (a) ndi incoherent synthetic array, ndiko kuti, pali "array" yokha yopanda "phased array". Chithunzi 1 (b) ~ (d) chikuwonetsa mitundu itatu yogwira ntchito ya optical phased array (ndiko kuti, coherent synthetic array).
Dongosolo losapanga zinthu losagwirizana limangopanga mphamvu yosavuta ya kuwala kwa array popanda kulamulira gawo la kuwala kwa array. Gwero lake la kuwala likhoza kukhala ma laser angapo okhala ndi ma wavelength osiyanasiyana, ndipo kukula kwa malo akutali kumatsimikiziridwa ndi kukula kwa gawo lotumizira, mosasamala kanthu za kuchuluka kwa zinthu za array, aperture yofanana ya array ndi duty ratio ya beam array, kotero silingawerengedwe ngati phased array m'lingaliro lenileni. Komabe, dongosolo losapanga zinthu losagwirizana lakhala likugwiritsidwa ntchito kwambiri chifukwa cha kapangidwe kake kosavuta, kufunikira kochepa pakugwira ntchito kwa gwero la kuwala komanso mphamvu yayikulu yotulutsa.
Kuchokera pamalingaliro olandira, optical phased array imagwiritsidwa ntchito mu kujambula kwapamwamba kwa ma targets akutali (Chithunzi 2). Imapangidwa ndi telescope array, phase retarder array, beam combinator ndi chipangizo chojambulira. Kugwirizana kovuta kwa gwero la cholinga kumapezeka. Chithunzi cha cholinga chimawerengedwa malinga ndi chiphunzitso cha Fansert-Zernick. Njira iyi imatchedwa njira yolumikizira zithunzi, yomwe ndi imodzi mwa njira zopangira zojambula. Kuchokera pamalingaliro a kapangidwe ka dongosolo, kapangidwe ka dongosolo la zithunzi za interferometric ndi dongosolo lotulutsa zithunzi za phased ndi chimodzimodzi, koma njira yotumizira zithunzi za kuwala m'magwiritsidwe awiriwa ndi yosiyana.
Nthawi yotumizira: Meyi-26-2023