绵阳师范学院学报
綿暘師範學院學報
면양사범학원학보
JOURNAL OF MIANYANG NORMAL UNIVERSITY
2012年
8期
21-27
,共7页
波长控制%光学相控阵%不等间距%优化%PZT调相
波長控製%光學相控陣%不等間距%優化%PZT調相
파장공제%광학상공진%불등간거%우화%PZT조상
Wavelength control%optical phased - array%unequal spacing%optimization%PZT phase modulation
介绍了光学相控阵技术的发展背景和工作原理,探讨了光束扫描(指向)控制存在的扫描机械问题及光学相控阵具有的功能优势,用仿真软件和实验来分别验证不等间距的光纤光学相控阵的特牲,论证了光真实时间延迟在宽瞬时带宽情况下的无“波束偏斜”特性,做了仿真一维二维相控阵远场分布图,但由于光纤阵列结构制作误差较大,使得符合不等间距理论与光纤相控阵现实难以实现,为光学相控阵技术的研究方向和应用前景提供实验依据。
介紹瞭光學相控陣技術的髮展揹景和工作原理,探討瞭光束掃描(指嚮)控製存在的掃描機械問題及光學相控陣具有的功能優勢,用倣真軟件和實驗來分彆驗證不等間距的光纖光學相控陣的特牲,論證瞭光真實時間延遲在寬瞬時帶寬情況下的無“波束偏斜”特性,做瞭倣真一維二維相控陣遠場分佈圖,但由于光纖陣列結構製作誤差較大,使得符閤不等間距理論與光纖相控陣現實難以實現,為光學相控陣技術的研究方嚮和應用前景提供實驗依據。
개소료광학상공진기술적발전배경화공작원리,탐토료광속소묘(지향)공제존재적소묘궤계문제급광학상공진구유적공능우세,용방진연건화실험래분별험증불등간거적광섬광학상공진적특생,론증료광진실시간연지재관순시대관정황하적무“파속편사”특성,주료방진일유이유상공진원장분포도,단유우광섬진렬결구제작오차교대,사득부합불등간거이론여광섬상공진현실난이실현,위광학상공진기술적연구방향화응용전경제공실험의거。
In this paper, the developmental background and operating principle of technique of optical phased -array is introduced; the mechanical problems of the beam scanning and the function superiority optical phased - array are discussed ; the characteristics of optical phased - array are verified with simulation software and exper- iments ; the features of non - beam deflection under the wide instant bandwidth with the real time - delay of lights are testified ; and also, the diagrams of interference distribution of one - and two - dimensional phased - array far fields are provided; however, because of errors in making optical fiber array structure, it is difficult to carry out the accordace of the unequal spacing theory with the reality of optical phased - array. Above all, this paper pro- vides some experimental basis for further study and application of this technique of optical phased - array.