Zhu Lingxiao, Lien Yu-Hung, Hinton Andrew, Niggebaum Alexander, Rammeloo Clemens, Bongs Kai, Holynski Michael
Opt Express. 2018 Mar 19;26(6):6542-6553. doi: 10.1364/OE.26.006542.
A frequency doubled I/Q modulator based optical single-sideband (OSSB) laser system is demonstrated for atomic physics research, specifically for atom interferometry where the presence of additional sidebands causes parasitic transitions. The performance of the OSSB technique and the spectrum after second harmonic generation are measured and analyzed. The additional sidebands are removed with better than 20 dB suppression, and the influence of parasitic transitions upon stimulated Raman transitions at varying spatial positions is shown to be removed beneath experimental noise. This technique will facilitate the development of compact atom interferometry based sensors with improved accuracy and reduced complexity.
一种基于倍频I/Q调制器的光学单边带（OSSB）激光系统被用于原子物理研究，特别是用于原子干涉测量，在原子干涉测量中，额外边带的存在会导致寄生跃迁。对OSSB技术的性能以及二次谐波产生后的光谱进行了测量和分析。额外边带被抑制了20 dB以上，并且在不同空间位置上，寄生跃迁对受激拉曼跃迁的影响在实验噪声水平以下被消除。该技术将有助于开发具有更高精度和更低复杂度的紧凑型原子干涉测量传感器。
