Since the double-loop atom interferometer consisting of Raman ##IMG## [http://ej.iop.org/images/0026-1394/57/3/035006/metab7174ieqn1.gif] {${\frac{\pi }{2}\!-\!\pi\!-\!\pi\!-\!\frac{\pi }{2}}$} four-pulse sequences can eliminate the dependence of the interferometric phase shift on the atomic initial velocity, it is widely used for rotation measurements. However, our research shows that by coupling itself with both the atomic initial velocity and the laser detuning, the short pulse duration can contribute to unknown systematic errors within the current instrument sensitivity. The coupling of the pulse duration with the laser detuning inside the device is verified experimentally and presented in this work. An improved pulse sequence design is developed to eliminate these systematic errors and improve the precision of the rotation measurements.

中文翻译：

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改进的拉曼脉冲序列，可用于原子干涉仪的旋转测量

由于由拉曼## IMG ##组成的双环原子干涉仪[http://ej.iop.org/images/0026-1394/57/3/035006/metab7174ieqn1.gif] {$ {\ frac {\ pi } {2} \！-\！\ pi \！-\！\ pi \！-\！\ frac {\ pi} {2}} $}四脉冲序列可以消除干涉相移对原子初始速度，广泛用于旋转测量。但是，我们的研究表明，通过将自身与原子初始速度和激光失谐耦合，短脉冲持续时间会导致当前仪器灵敏度范围内的未知系统误差。实验验证了脉冲持续时间与设备内部的激光失谐的耦合，并在这项工作中进行了介绍。开发了一种改进的脉冲序列设计，以消除这些系统误差并提高旋转测量的精度。