A double closed-loop frequency stabilization method for longitudinal Zeeman laser

Hanxiao Du; Huafeng Li

doi:10.1117/12.2654817

15 December 2022 A double closed-loop frequency stabilization method for longitudinal Zeeman laser

Hanxiao Du, Huafeng Li

Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 124783A (2022) https://doi.org/10.1117/12.2654817
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China

Abstract

In the field of non-contact measurement, the light source of laser interferometer mainly uses He-Ne laser, and the wavelength stability of the light source directly determines the highest precision of interferometric measurement. The longitudinal Zeeman laser is prone to the problem of loss of lock in the industrial field environment where the ambient temperature varies widely. In this paper, to address the problem of poor environmental adaptability of the longitudinal Zeeman laser, the temperature closed-loop control is added to the traditional Zeeman frequency stabilization method to improve the temperature control accuracy, shorten the frequency stabilization control time, and improve the frequency stability of the longitudinal Zeeman laser. The experimental results show that the frequency stability reaches the order of 10-9 after using the frequency stabilization method for the longitudinal Zeeman laser, which meets the requirements of commercial dual-frequency laser interferometers.

Citation Download Citation

Hanxiao Du and Huafeng Li "A double closed-loop frequency stabilization method for longitudinal Zeeman laser", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 124783A (15 December 2022); https://doi.org/10.1117/12.2654817

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