Influence of phase shift drift and splitting ratio on 80 GHz optical mm-wave generation  

作　　者：朱子行 赵尚弘 幺周石 谭庆贵 李勇军 董毅 赵卫虎 

机构地区：[1]Telecommunication Engineering Institute,Air Force Engineering University [2]Key Laboratory of National Defence Science and Technology on Space Microwave Technology

出　　处：《Optoelectronics Letters》2012年第4期301-305,共5页光电子快报（英文版）

基　　金：supported by the National High Technology Research and Development Program of China(No.2007AA01Z294)

摘　　要：For the scheme of 80 GHz optical millimeter-wave(mm-wave) generation using two cascaded Mach-Zehnder modulators(MZMs),an exact analytical solution for the optical mm-wave affected by phase shift drift and splitting ratio is derived with the method of expanding Bessel series.The results show that for the carrier and the fourth-order sideband,the influence caused by phase shift drift is dominant,while the first-order,the second-order and the third-order sidebands are influenced by both phase shift drift and splitting ratio.It follows that the undesired sideband suppression ratio is at least 35.9 dB when the splitting ratio deviation is 0.001,and the phase shift drift is 1o.The performance of the system is perfect if the accuracy is achieved.

关 键 词：Light modulators Millimeter waves Phase shift 

分 类 号：TN761[电子电信—电路与系统]