偏振态一致的时分复用系统及其测试方法研究  

Research of the Optical Time-Division Multiplexing with the Same Polarization and Test Method

作　　者：张卓宁[1] 李建中[1] 王竞[1] 彭其先[1] 陶世兴[1] 

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《光学学报》2016年第2期49-54,共6页Acta Optica Sinica

基　　金：中国工程物理研究院X09专项(991100);中国工程物理研究院科学技术发展基金(2015B0401079);中国工程物理研究院科学技术发展基金(2015B0401080)

摘　　要：设计了基于法拉第旋转镜和三端口环形器偏振态一致的级联时分复用系统,其输出所有光脉冲偏振态一致,极大的提高了时分复用系统的偏振态稳定性,并对时分复用过程中时间和幅度调节误差对复用精度的影响进行了频谱分析,说明其功率密度只在基频率整数倍频点变化,进而采用频谱分析仪对时分复用过程中的时间、幅度误差进行实时检测和动态调节,对5级32倍时分复用检测。结果表明,该时分复用系统的有效位数达到了6.15 bit。An optical time-division multiplexing （OTDM） technique based on the Faraday rotator and three port circulator is designed. The polarizations of the optical pulse exported from the OTDM system are all the same, which have greatly increased the polarize stability. The effect of the adjusted errors on the intensity and time are analyzed with frequency spectrum. The results indicate that the power density varies only on the frequencies which are multiples of the basic frequency. A spectral analyzer is used to achieve a real-time measurement on the errors of intensity and time. The effective-number-of-bits of the five degree OTDM is 6.15 bit.

关 键 词：测量 时分复用 偏振态一致 频谱分析 实时检测 

分 类 号：O436[机械工程—光学工程]