Yuguang Huang , Jie Guo , Jinfeng Li , Zichen Gao , Xiaoyan Liang
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引用次数: 0
Abstract
We investigated the spatial distribution of the output beam of our existed high-power Yb: YAG Innoslab laser amplifier and proposed that the generation of sidelobes was caused by spherical aberration distortion. A beam propagation model based on the reconstructed crystal temperature distribution was established to study the beam evolution in the Innoslab laser amplifier, and the degradation of the beam profile and phase distribution of the signal during amplification was presented. The simulation reproduced the beam characteristics of the signal during amplification. The generation of sidelobes in the output beam profile was observed in the simulation, which was in agreement with the experimental measurements. The beam profile distribution of the signal began to exhibit sidelobes in the third pass, which became increasingly apparent during the subsequent amplification process, resulting in beam splitting and the sidelobe effect.
期刊介绍:
Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.