GBDT-based rapid evaluation model for laser propagation in atmospheric turbulence.

Authors

Hanyu Li, Guangwei Liu, Xiaoxing Feng, Nan Li, Ying Zhang, Qiang Liu, Yuan Fang, Haojin Li, Xiaoming Zhou, Chunhong Qiao, Chengyu Fan, Yingjian Wang

Published in

Applied optics. Volume 65. Issue 32. Pages 11397-11410. Nov 10, 2026. Epub Oct 14, 2026.

Abstract

To address beam quality degradation and enable rapid evaluation in turbulent laser atmospheric transmission, a GBDT regression model is proposed using real experimental data. Trained on 1000 samples, it employs launch diameter and refractive-index structure constant values at four path points to jointly predict the 63.2% and 83.9% encircled-energy radii of the long-exposure spot and the corresponding beam expansion factors. SHAP is further employed for interpretation. The model achieves coefficients of determination above 0.95 and lower relative errors than Lasso, random forest, XGBoost, and MLP, while retaining lightweight, real-time performance with 146,000 parameters and a 4.5 µs single-sample inference.

PMID:
43008167
Bibliographic data and abstract were imported from PubMed on 11 Nov 2026.

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