【摘要】 给出了基于高速磁光开关的光实时延时技术的方案。研究了拓扑结构和磁光开关对光延时性能的影响。研制了5 bit,32位的光实时延时系统,并建立了光延时的测试平台,经测试,延时线延时精度优于3ps。对光延时单元插损进行测试,结果显示:32态单元插损为0.12~0.88 dB,各态变化呈随机性。更多还原

【Abstract】 The optical true time delay scheme based on magneto-optic(MO) switch was analyzed,and optical and electrical features of MO switch were discussed.The advantages and disadvantages of different topologies were analyzed,i.e.bypass structure and differential structure.A method for measuring optical delay with high precision and high efficiency was put forward.A 5 bit optical delay line system based on MO switch and fiber was set up,and the maximal delay error was less than 3 ps.The test of optical delay units shows that the insertion loss of 32 delay states ranges from 0.12 dB to 0.88 dB at a temperature of 0 to 40 ℃.更多还原