Optically Tunable Frequency-Doubling Brillouin Optoelectronic Oscillator With Carrier Phase-Shifted Double Sideband Modulation
Optically Tunable Frequency-Doubling Brillouin Optoelectronic Oscillator With Carrier Phase-Shifted Double Sideband Modulation
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DOI：
10.1109/lpt.2012.2194483
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发表时间：
2012-06
影响因子：
2.6
通讯作者：
Bo Yang;Xiaofeng Jin;H. Chi;Xianmin Zhang;Shilie Zheng;S. Zou;Haoshuo Chen;E. Tangdiongga;
中科院分区：
文献类型：
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作者：
Bo Yang;Xiaofeng Jin;H. Chi;Xianmin Zhang;Shilie Zheng;S. Zou;Haoshuo Chen;E. Tangdiongga;
提出并实现了一种基于受激布里渊散射（SBS）和载波相移双边带（CPS-DSB）调制的光调谐倍频光电子振荡器（FD-OEO）。SBS效应为OEO提供窄带滤波以产生频率等于布里渊频移的振荡信号，而通过使用双并行Mach-Zehnder调制器实现CPS-DSB调制以使振荡频率加倍。由于布里渊频移与波长相关，通过调谐激光源的波长实现频率可调谐性。在实验中，当激光源的波长从1565 nm调谐到1535 nm时，产生了18.38 GHz到18.74 GHz的倍频微波信号。
An optically tunable frequency-doubling optoelectronic oscillator (FD-OEO) based on stimulated Brillouin scattering (SBS) and carrier phase-shifted double sideband (CPS-DSB) modulation is proposed and demonstrated. SBS effect provides narrowband filtering for the OEO to generate an oscillation signal with frequency equal to the Brillouin frequency shift, while a CPS-DSB modulation by using a dual-parallel Mach-Zehnder modulator is implemented to double the oscillation frequency. Owing to the wavelength-dependent Brillouin frequency shift, frequency tunability is realized by tuning the wavelength of the laser source. In the experiments, frequency-doubling microwave signals from 18.38 to 18.74 GHz are generated when the wavelength of the laser source is tuned from 1565 to 1535 nm.