Mach-Zehnder干涉开关相位变化测量

IF 1 4区工程技术 Q4 INSTRUMENTS & INSTRUMENTATION

Measurement Science Review Pub Date : 2021-10-26 DOI:10.2478/msr-2021-0024

Sichen Fan, Jun Ruan, Dandan Liu, Xinliang Wang, Fan Yang, Yong Guan, Hui Zhang, Junru Shi, Yang Bai, Shougang Zhang

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引用次数: 0

摘要

摘要审问场的相位变化导致拉姆齐型原子钟的频移。本文报道了一种能有效抑制相位瞬变效应的300 MHz马赫-曾达(MZ)开关的研制。与MZ干涉仪类似，这种射频(RF) MZ开关包括功率和相位相互匹配的两条臂。通过在一只手臂插入PIN二极管射频开关，另一只手臂保持不受干扰，释放它的相位瞬态。触发相位波动测量是通过使用锁相放大器提取同相和正交(I/Q)解调数据来实现的。结果表明，射频MZ开关相位波动的消光比<5 μrad，显著低于PIN (50 μrad);当应用于铯喷泉钟时，射频MZ开关产生的频率位移优于1.73 × 10−16。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Phase Variation Measurement in Mach–Zehnder Interferometric Switch

Abstract Phase variations of the interrogation field lead to frequency shifts in Ramsey-type atomic clocks. This paper reports the development of a 300 MHz Mach–Zehnder (MZ) switch that effectively suppresses phase-transient effects. Similar to MZ interferometers, this radio-frequency (RF) MZ switch comprises two arms that are power- and phase-matched with each other. By inserting a PIN diode RF switch in one arm, the other arm remains undisturbed, freeing it of the phase transient. Trigger phase fluctuation measurements are implemented by using a lock-in amplifier to extract the in-phase and quadrature (I/Q) demodulation data. The results show that the extinction ratio of the RF MZ switch phase fluctuations is <5 μrad, which is significantly lower than that of a PIN (50 μrad). When applied to a cesium fountain clock, the RF MZ switch produces a frequency shift better than 1.73 × 10−16.

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来源期刊

Measurement Science Review INSTRUMENTS & INSTRUMENTATION-

CiteScore

2.00

自引率

11.10%

发文量

审稿时长

4.8 months

期刊介绍： - theory of measurement - mathematical processing of measured data - measurement uncertainty minimisation - statistical methods in data evaluation and modelling - measurement as an interdisciplinary activity - measurement science in education - medical imaging methods, image processing - biosignal measurement, processing and analysis - model based biomeasurements - neural networks in biomeasurement - telemeasurement in biomedicine - measurement in nanomedicine - measurement of basic physical quantities - magnetic and electric fields measurements - measurement of geometrical and mechanical quantities - optical measuring methods - electromagnetic compatibility - measurement in material science