A Frequency-Doubling Optoelectronic Oscillator Using a Polarization Modulator
A Frequency-Doubling Optoelectronic Oscillator Using a Polarization Modulator
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DOI：
10.1109/lpt.2009.2020685
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发表时间：
2009-07
影响因子：
2.6
通讯作者：
S. Pan;J. Yao
中科院分区：
文献类型：
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作者：
S. Pan;J. Yao
提出了一种利用偏振调制器（PolM）实现倍频光电振荡器（OEO）的方法并进行了实验验证。在所提出的系统中，PolM与通过两个偏振控制器（pc）连接的两个光偏振器相结合，作为双输出强度调制器工作。强度调制器的一个输出连接到PolM的射频端口，形成光电环路，用于产生基频由窄带电子滤波器的中心频率确定的微波信号。强度调制器的另一个输出提供基频或倍频的光调制微波信号，这取决于PC在偏振器之前引入的静态相位项。实验证明了该方法的有效性。产生10ghz的基频微波信号或20ghz的倍频微波信号。研究了所产生的微波信号的相位噪声特性。
A novel realization of a frequency-doubling optoelectronic oscillator (OEO) using a polarization modulator (PolM) is proposed and experimentally demonstrated. In the proposed system, the PolM in combination with two optical polarizers connected via two polarization controllers (PCs) is operating as a two-output intensity modulator. One output of the intensity modulator is connected to the radio-frequency port of the PolM, to form an optoelectronic loop for the generation of a microwave signal with the fundamental frequency determined by the center frequency of a narrowband electronic filter. The other output of the intensity modulator provides a fundamental or frequency-doubled optically modulated microwave signal depending on the static phase term introduced by the PC before the polarizer. The proposed OEO is experimentally demonstrated. A fundamental microwave signal at 10 GHz or a frequency-doubled microwave signal at 20 GHz is generated. The phase noise performance of the generated microwave signal is also investigated.