论文标题

被动光相消除

Passive Optical Phase Noise Cancellation

论文作者

Hu, Liang, Tian, Xueyang, Wu, Guiling, Chen, Jianping

论文摘要

我们通过被动地将光相信息嵌入射频(RF)信号并使用光相扰动引入的相位噪声量来移动光相频率,从而报告了光相消除技术的实现。在常规的相位噪声取消中,由于开环设计而减轻一些技术问题,例如有限的补偿速度和有限的相/正时抖动,因此不需要相位歧视和主动相跟踪。我们在实验上证明,该技术保持与常规技术相同的延迟限制带宽和相位噪声抑制能力,但显着缩短了响应速度和相位恢复时间。被动解耦光相扰动代表了未来光原子时钟的光学频率标准比较和发条的域中的一种强大技术,现在正在认真研究国际时间尺度的潜在重新定义。

We report on the realization of an optical phase noise cancellation technique by passively embedding the optical phase information into a radio frequency (RF) signal and shifting the optical frequency with the amount of phase noise introduced by optical phase perturbations. Neither phase discrimination nor active phase tracking is required due to the open-loop design, mitigating some technical problems, such as the limited compensation speed and the finite phase/timing jitter, in conventional phase noise cancellation. We experimentally demonstrate that this technique maintains the same delay-limited bandwidth and phase noise suppression capability as in conventional techniques, but significantly shortens the response speed and phase recovery time. Passive decoupling optical phase perturbation represents a powerful technique in the domains of optical frequency standard comparisons and clockworks for future optical atomic clocks, which are now under serious investigation for a potential redefinition of the International Time Scale.

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