摘要
光学相控阵技术是一种新型的光束偏转技术,具有扫描快、抗干扰、分辨率高和高保密性等优点,但栅瓣的存在一直是光学相控阵研究的瓶颈问题之一。综述了光学相控阵的历史、原理、发展现状和趋势,说明了栅瓣的影响,并在原有消除栅瓣方法基础上提出了一种新型的方法来消除栅瓣,即改变非规则光学相控阵的入射光相位,此方法有效地抑制了光学相控阵的栅瓣,最后讨论了三种方法的优缺点,并对发展前景进行了展望。
The technology of optical phased array is a new beam deflection technology with the advantages of fast scanning, anti-jamming, high resolution and secrecy. But grating lobe is one of the bottleneck problems in the research optical phased array technology. Incorporating with the history, principles, development actuality and tendency of optical phased array technology, the influences of grating lobe are explained. Based on the presented methods of grating lobes reducing, a new method of changing the incident light phases of irregular optical phased array is introduced. The grating lobes of optical phased array are restrained effectively by the method. The advantages and disadvantages of three methods are discussed. And the development prospects of optical phased array technology are forecasted.
出处
《光电技术应用》
2013年第5期10-14,共5页
Electro-Optic Technology Application
关键词
光学器件
光学相控阵
栅瓣
optical device
optical phased array
grating lobe
