Optimization of thin-disk laser pump scheme for enhanced efficiency

Bingying Lei; Liyi Zhang; Yanshen Cheng; Shuai Yao; Le Wang; Yishan Wang; Hua Lin; Yuxi Fu

doi:10.1117/12.3045716

13 December 2024 Optimization of thin-disk laser pump scheme for enhanced efficiency

Bingying Lei, Liyi Zhang, Yanshen Cheng, Shuai Yao, Le Wang, Yishan Wang, Hua Lin, Yuxi Fu

Proceedings Volume 13492, AOPC 2024: Laser Technology and Applications; 1349204 (2024) https://doi.org/10.1117/12.3045716
Event: Applied Optics and Photonics China 2024 (AOPC2024), 2024, Beijing, China

Abstract

We introduce novel pump layouts for thin-disk lasers that maximize the number of passes while maintaining a fixed pump module size and moderate pump source quality. These advanced layouts are based on a nested multi-pass optical system, achieved by adding a series of deflecting prism pairs to ensure a uniform and compact beam distribution. This innovative approach not only increases the number of pump passes but also significantly enhances the overall efficiency of the laser system. As a result, it becomes feasible to use active materials with lower absorption rates, which are typically challenging to employ in standard designs. The main advantage of our method lies in its ability to minimize the typical increases in overall size and the stringent pump source quality requirements that are often associated with conventional multi-pass pump designs. By optimizing the optical arrangement, we ensure that the enhanced performance does not come at the expense of increased system complexity or footprint. This makes our design particularly suitable for industrial applications where space, cost, and reliability are critical factors. Furthermore, the use of commercially available pump optics, combined with the additional deflecting prism pairs, provides a practical and scalable solution that can be readily implemented. Our novel pump layouts thus offer a significant advancement in thin-disk laser technology, paving the way for more efficient and compact laser systems that can meet the demands of various industrial applications.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Bingying Lei, Liyi Zhang, Yanshen Cheng, Shuai Yao, Le Wang, Yishan Wang, Hua Lin, and Yuxi Fu "Optimization of thin-disk laser pump scheme for enhanced efficiency", Proc. SPIE 13492, AOPC 2024: Laser Technology and Applications, 1349204 (13 December 2024); https://doi.org/10.1117/12.3045716

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KEYWORDS

Parabolic mirrors

Prisms

Beam diameter

Laser applications

Imaging systems

Light absorption

Collimation

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