Ngokulawula isigaba somqamulo weyunithi ku-beam array, ubuchwepheshe be-optical phased array bungafeza ukwakhiwa kabusha noma ukulawulwa okunembile kwendiza ye-isopic ye-array beam. Inezinzuzo zomthamo omncane kanye nobunzima besistimu, isivinini sokuphendula okusheshayo kanye nekhwalithi enhle ye-beam.
Umgomo osebenzayo wobuchwepheshe be-optical phased array ukushintsha kahle (noma ukulibazisa) isignali yesakhi sesisekelo esihlelwe ngokomthetho othile ukuze kutholakale ukuphambuka komsebe we-array. Ngokusho kwencazelo engenhla, ubuchwepheshe be-optical phased array buhlanganisa ubuchwepheshe be-large-angle be-beam deflection yama-beam emission arrays kanye nobuchwepheshe be-array telescope interference imaging yokuthwebula izithombe ze-high-resolution zama-target akude.
Ngokombono wokukhishwa, i-optical phased array iwukulawula isigaba somsebe odluliselwe we-array, ukuze kuqashelwe ukuphambuka okuphelele komsebe we-array noma isinxephezelo sephutha lesigaba. Isimiso esiyisisekelo se-optical phased array siboniswe ku-FIG. 1. I-FIG. 1 (a) i-synthetic array engavumelani, okungukuthi, kukhona "i-array" kuphela ngaphandle kwe-"phased array". Isibalo 1 (b) ~ (d) sibonisa izimo ezintathu zokusebenza ezihlukene ze-optical phased array (okungukuthi, i-coherent synthetic array).
Uhlelo lokuhlanganisa olungaphelele lwenza kuphela ukufakwa kwamandla okulula kwe-array beam ngaphandle kokulawula isigaba se-array beam. Umthombo walo wokukhanya ungaba ama-laser amaningi anama-wavelength ahlukene, futhi usayizi wendawo ekude unqunywa usayizi weyunithi ye-array edlulisa, ngaphandle kwenani lezinto ze-array, i-aperture elinganayo ye-array kanye nesilinganiso somsebenzi we-array ye-beam, ngakho-ke alunakubalwa njenge-phased array ngomqondo weqiniso. Kodwa-ke, uhlelo lokuhlanganisa olungaphelele lusetshenziswe kabanzi ngenxa yesakhiwo salo esilula, isidingo esiphansi ekusebenzeni komthombo wokukhanya kanye namandla aphezulu okukhipha.
Ngokombono wokwamukela, i-optical phased array isetshenziswa ekufomeni kwe-high-resolution yama-remote target (Isithombe 2). Yakhiwe nge-telescope array, i-phase retarder array, i-beam combinator kanye nedivayisi yokuthwebula izithombe. Kutholakala ukuhambisana okuyinkimbinkimbi komthombo wokuthwebula. Isithombe sokuthwebula sibalwa ngokwe-Fanssert-Zernick theorem. Le ndlela ibizwa ngokuthi i-interference imaging technique, okungenye yezindlela zokuthwebula izithombe ze-synthetic aperture. Ngokombono wesakhiwo sesistimu, isakhiwo se-interferometric imaging system kanye ne-phased array emission system ngokuyisisekelo iyafana, kodwa isiqondiso sokudlulisela indlela ye-optical kuzinhlelo zokusebenza ezimbili siphambene.
Isikhathi sokuthunyelwe: Meyi-26-2023