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    • 3. 发明申请
    • COHERENT SPECTROSCOPIC METHODS WITH EXTENDED INTERROGATION TIMES AND SYSTEMS IMPLEMENTING SUCH METHODS
    • 具有扩展的时间和系统的相似光谱方法实现这种方法
    • WO2016097332A1
    • 2016-06-23
    • PCT/EP2015/080571
    • 2015-12-18
    • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRSINSTITUT D'OPTIQUE GRADUATE SCHOOLOBSERVATOIRE DE PARIS
    • BERTOLDI, AndreaKOHLHAAS, RalfLANDRAGIN, ArnaudBOUYER, Philippe, Luc
    • B82Y10/00G01V7/00G04F5/14G06N99/00H03L7/26
    • G01J3/453B82Y10/00G01B2290/55G01J9/02G01V7/06G04F5/14
    • Coherent spectroscopic methods are described, to measure the total phase difference during an extended interrogation interval between the signal delivered by a local oscillator (10) and that given by a quantum system (QS). According to one or more embodiments, the method may comprise reading out at the end of successive interrogation sub-intervals (Ti) intermediate error signals corresponding to the approximate phase difference (φ) between the phase of the LO signal and that of the quantum system, using coherence preserving measurements; shifting at the end of each interrogation sub-intervals (Ti) the phase of the local oscillator signal, by a known correction value ( φ (i) FB ) so as to avoid that the phase difference approaches the limit of the inversion region; reading out a final phase difference (φf) between the phase of the prestabilized oscillator signal and that of the quantum system using a precise measurement with no restriction on the destruction; reconstructing a total phase difference over the extended interrogation interval, as the sum of the final phase difference (φf) and the opposite of all the applied phase corrections figure (I).
    • 描述了相干光谱方法,以测量由本地振荡器(10)传递的信号与由量子系统(QS)给出的信号之间的扩展询问间隔期间的总相位差。 根据一个或多个实施例,该方法可以包括在与LO信号的相位和量子系统的相位之间的近似相位差(φ)相对应的连续询问子间隔(Ti)中间误差信号的结尾处读出 ,使用相干性保存测量; 通过已知校正值(φ(i)FB)在每个询问子间隔(Ti)本地振荡器信号的相位移位,以避免相位差接近反转区域的极限; 使用精确的测量来读出预稳定振荡器信号的相位与量子系统的相位之间的最终相位差(φf),对破坏没有限制; 将扩展询问间隔中的总相位差重建为最终相位差(φf)与所有施加的相位校正图(I)的相反的总和。