论文标题
用于蒸气单元时钟应用的二极管激光器的频率噪声表征应用
Frequency noise characterization of diode lasers for vapor cell clocks applications
论文作者
论文摘要
在几个高分辨率实验中，对二极管激光器的频率频谱的了解引起了人们的关注。具体而言，在激光泵送的蒸气细胞时钟中，众所周知，激光频率噪声在影响时钟性能中起作用。然后，重要的是要表征二极管激光器的频率噪声，尤其是因为在文献中很少发现此类测量值，而且供应商几乎没有提供。在本文中，我们描述了一种基于频率到电压转换器的技术，该技术将激光频率波动转换为电压波动。通过这种方式，可以根据单元时钟应用中的要求来表征激光频率噪声功率频谱密度。
The knowledge of the frequency noise spectrum of a diode laser is of interest in several high resolution experiments. Specifically, in laser-pumped vapor cell clocks, it is well established that the laser frequency noise plays a role in affecting the clock performances. It is then important to characterize the frequency noise of a diode laser, especially since such measurements are rarely found in the literature and hardly ever provided by vendors. In this paper, we describe a technique based on a frequency-to-voltage converter that transforms the laser frequency fluctuations into voltage fluctuations. In this way, it is possible to characterize the laser frequency noise power spectral density in a wide range of Fourier frequencies, as required in cell clock applications.
