基于射频倍频信号驱动双平行马赫曾德调制器产生光频梳

发布时间：2018-06-18 02:03

本文选题：光纤通信设备 + 光学频率转换　；参考：《光子学报》2017年S1期

【摘要】：为克服传统正交频分复用及波分复用系统以激光序列作为多载波光源带来的不易协调同步、成本高等缺点,利用正弦型射频信号与其倍频信号驱动单个双平行马赫曾德调制器,对连续光载波进行调制,在较低的驱动电压下,产生了具有2条、3条、4条、5条、7条及9条谱线的平坦光频梳.其中,具有2、3、5条谱线的光频梳平坦度均为0dB,边模抑制比均在30dB左右;具有4、7、9条谱线的光频梳平坦度在1dB范围内,边模抑制均比高于18dB.该方法结构简单,成本低,易协调,与现有技术相比,产生的光频梳平坦度更高、边模抑制比更大、射频驱动电压更低且条数更为多样.
[Abstract]:In order to overcome the disadvantages of the traditional orthogonal frequency division multiplexing (OFDDM) and wavelength division multiplexing (WDM) systems, such as difficult coordination and high cost brought by laser sequence as multi-carrier light source, a single dual parallel Mach Zende modulator is driven by sinusoidal RF signal and its frequency doubling signal. By modulating the continuous optical carriers, a flat optical comb with two lines, three lines, four lines, five lines, seven lines and nine lines is produced at a lower driving voltage. Among them, the flattening degree of optical frequency comb with 2 ~ 3 ~ 3 ~ 5 lines is 0 dB, the edge-mode suppression ratio is about 30 dB, and the flattening degree of optical frequency comb with 4 ~ 7 ~ 9 lines is higher than 18 dB in the range of 1 dB. Compared with the prior art, this method has the advantages of simple structure, low cost and easy coordination. Compared with the prior art, the optical comb has higher flattening degree, larger edge-mode rejection ratio, lower RF driving voltage and more diverse bars.
【作者单位】：北京交通大学光波技术研究所全光网络与现代通信网教育部重点实验室;
【基金】：国家自然科学基金(No.61107094) 北京交通大学青年英才计划资助~~
【分类号】：TN761;TN929.1

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