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- W4384436210 endingPage "109791" @default.
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- W4384436210 abstract "Nowadays, atomic, molecular and optical (AMO) physics experiments are becoming more and more sophisticated and always need the servo to actively satisfy the high stability of a large number of physical parameters, especially the frequency, intensity and phase of lasers. However, the widely used servo has only one or two channels, and its massive use makes the control system complicated and difficult to manage. To address this issue, we develop, manufacture and characterize a compact eight-channel digital servo with a control bandwidth of over 1 MHz which is embedded on a single FPGA. To show the performance of our homemade digital servo, we demonstrate three typical laser-related active stabilizations in the AMO experiments. An external cavity diode laser (ECDL) is frequency locked to an ultra-stable optical reference cavity, resulting in a linewidth of 65 kHz. Suppression of the intensity noise of laser light over 150 kHz is achieved by using an acoustic-optic modulator. An actively stabilized Mach-Zehnder interferometer with a nine meters long air arm shows an optical path fluctuation of less than 6 nm. Due to its versatile applicability and excellent scalability, we believe that this configuration will be widely used in AMO, especially in optics and laser-related experiments." @default.
- W4384436210 created "2023-07-16" @default.
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- W4384436210 date "2023-12-01" @default.
- W4384436210 modified "2023-09-25" @default.
- W4384436210 title "Active stabilization of multi-parameter in AMO experiments with a single digital servo" @default.
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- W4384436210 doi "https://doi.org/10.1016/j.optlastec.2023.109791" @default.
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