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Anti-interference frequency stabilization algorithm with a large locking range based on compound differentiation
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DOI：10.1364/OPTCON.580308.png)
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Abstract
En 中文
Stabilizing the frequency of free-running lasers is crucial for high-precision optical measurements. However, this process is susceptible to environmental interference and device power noise. In this study, we present a robust anti-interference algorithm based on compound differentiation. This algorithm effectively mitigates power noise from the light source, including noise arising from modulation and circuitry. The effectiveness of the algorithm is experimentally verified. Additionally, we introduce a frequency-deviation demodulation algorithm that leverages specific power-point combinations. The feasibility of this approach is supported by simulations. Furthermore, the algorithm is designed to be compatible with other frequency stabilization systems that do not require wavelength selectivity. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keywords:
HE-NE LASERS
SATURATED ABSORPTION
STABILITY