Pulsed light power stabilization of a semiconductor laser using a mixed analog-digital method with an acousto-optic modulator.

Autor: Liu C, Prado CAG, Tang C, Zhong Z, Zhao T, Zhai Y
Jazyk: angličtina
Zdroj: Applied optics [Appl Opt] 2022 Feb 10; Vol. 61 (5), pp. 1133-1138.
DOI: 10.1364/AO.447538
Abstrakt: Diffraction beams produced by an acousto-optic modulator are widely used in various optical experiments, some of which need to modulate the radio-frequency drive signal to change the diffraction beams from continuous light to pulsed light. The generation of such pulsed light is open-loop, and long-term stability of the power is disregarded. In this paper, we introduce a method to suppress the pulsed light power drift of a semiconductor laser. By using the servo system, the low frequency power drift of 1-60 kHz pulsed light can be suppressed. This pulsed light power stabilization method can be applied to optical rotation detection and pulse pumping.
Databáze: MEDLINE