相位噪声测量的双光子-延迟线互相关法

E. Salik, N. Yu, L. Maleki, E. Rubiola
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引用次数: 41

摘要

本文介绍了双光子延迟线互相关法在低噪声微波振荡器同差相位噪声测量中的应用。该方法结合了延迟线鉴别器和互相关,并使用了低损耗的公里长的光子延迟。通过使用4.5 km光纤作为光子延迟,我们演示了在没有参考振荡器的情况下,在10 kHz偏移量下测量噪声本底为-158 dBc/Hz。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dual photonic-delay line cross correlation method for phase noise measurement
We describe the application of a cross-correlation method with dual photonic delay-line for homodyne phase noise measurement of low-noise microwave oscillators. This method combines a delay-line discriminator and cross correlation with the use of a low-loss kilometer-long photonic delay. By using a 4.5 km optical fiber as a photonic delay, we demonstrated a measurement noise floor of -158 dBc/Hz at 10 kHz offset without a reference oscillator.
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