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为了优化宽泛可调的低频基准射频信号系统、降低射频生成系统的相位噪声,采用减少部件的优化设计方法,使用调幅器改善相位噪声,实现了系统设计的简化。经过理论分析和实验验证,取得了低频射频信号条件下的系统相位噪声与频率偏移数据。结果表明,可以通过机械隔离来消除由于光纤振动产生的过量相位噪声。这在未来的光通信领域中具有一定的应用价值和实际意义。
In order to optimize the low-frequency RF signal system with wide and adjustable base, and reduce the phase noise of the RF generation system, the optimized design method of reducing the components and the use of the amplitude modulator to improve the phase noise are provided to simplify the system design. After theoretical analysis and experimental verification, the system phase noise and frequency offset data are obtained under the condition of low frequency radio frequency signal. The results show that excessive phase noise due to fiber vibration can be eliminated by mechanical isolation. This has certain application value and practical significance in the field of optical communication in the future.