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Fiber-optic delay-line stabilization of heterodyne optical signal generator and method using same
Fiber-optic delay-line stabilization of heterodyne optical signal generator and method using same
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机译:外差光信号发生器的光纤延迟线稳定化及其使用方法
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摘要
The present invention is a laser heterodyne frequency generator system with a stabilizer for use in the microwave and millimeter-wave frequency ranges utilizing a photonic mixer as a photonic phase detector in a stable optical fiber delay-line. Phase and frequency fluctuations of the heterodyne laser signal generators are stabilized at microwave and millimeter wave frequencies by a delay line system operating as a frequency discriminator. The present invention is free from amplifier and mixer 1/ƒ noise at microwave and millimeter-wave frequencies that typically limit phase noise performance in electronic cavity stabilized electronic oscillators. Thus, 1/ƒ noise due to conventional mixers is eliminated and stable optical heterodyne generation of electrical signals is achieved.
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