期刊
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
卷 71, 期 -, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIM.2022.3216836
关键词
Laser noise; Measurement by laser beam; Frequency measurement; Masers; Semiconductor lasers; Clocks; Resonant frequency; Atomic clocks; frequency noise; frequency-to-voltage (f; V) converter; laser; rubidium
资金
- European Space Agency through the General Support Technology Programme (GSTP) Element 2 Make: Industrialization of the Rb Pulsed Optically Pumped (POP) Clock
This article describes a technique based on a frequency-to-voltage converter that can convert laser frequency fluctuations into voltage fluctuations, thus characterizing the laser frequency noise power spectral density in a wide range of Fourier frequencies.
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 clock performances. It is then relevant to characterize the frequency noise of a diode laser since such measurements are rarely found in the literature and hardly ever provided by vendors. In this article, we describe a technique based on a frequency-to-voltage (f/V) 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 (PSD) in a wide range of Fourier frequencies, as required in cell clock applications.
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