Simplified optical millimeter-wave generation configuration based on frequency octupling
Simplified optical millimeter-wave generation configuration based on frequency octupling
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基于八倍频的简化光学毫米波发生配置
DOI：
10.1016/j.optcom.2013.11.033
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发表时间：
2014-03
影响因子：
2.4
通讯作者：
Jianfei Liao
中科院分区：
文献类型：
--
作者：
Yi Qin;Junqiang Sun;Mingdi Du;Jianfei Liao
本文对一种结构简单、可调谐的用于光纤无线电系统的八倍频毫米波信号进行了理论分析和实验验证。该系统由两个级联的Mach-Zehnder调制器(MZM)组成。第一种是工作在用于一阶光谐波产生的光载波抑制调制。第二种是双并联型MZM，它利用一阶光谐波产生八倍频毫米波信号。实验表明，在不加任何滤波的情况下，可以获得频率在4~80 GHz之间变化的八倍频宽带光毫米波信号，非期望的边带抑制比大于34×10-6分贝。给出了光纤无线下行链路系统的相位噪声性能和传输性能。产生的80千兆赫信号的单边带相位噪声为−88dBc/Hz，偏移量为10千赫。在50公里单模光纤传输后，在误码率为10−10时，功率损失小于3分贝。仿真结果表明，该方案对射频信号的相位漂移和MZM的偏置漂移不敏感，具有较高的稳定性。
In this paper, a tunable, wideband, with simple configuration to generate frequency octupled millimeter (mm)-wave signal for radio-over-fiber systems is theoretically analyzed and experimentally demonstrated. The proposed system consists of two cascaded Mach–Zehnder modulators (MZMs). The first one is working at optical carrier suppression modulation that is used for the first-order optical harmonic generation. The second one is dual-parallel MZM which utilized the first-order optical harmonic to generate frequency octupled mm-wave signal. The experiments show that without any filter, a wideband frequency octupled optical mm-wave signals with the frequency varying from 4 to 80 GHz and the undesired sideband suppression ratios of higher than 34 dB can be obtained. The phase noise performance and the transmission performance of the radio-over-fiber downlink system are also demonstrated. The single-sideband phase noise of the generated 80 GHz signal is −88 dBc/Hz at 10 kHz offset. The power penalty is less than 3 dB at the bit error rate of 10−10after 50 km single-mode fiber transmission. Furthermore, it is proved to be valid that the proposed scheme is insensitive to the RF signal phase drift and the MZM bias drift, which demonstrates a relatively higher stability.
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影响因子：
2.6
作者：
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通讯作者：
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影响因子：
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影响因子：
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