Investigation on the Formation of Laser Transverse Pattern Possessing Optical Lattices

Xin Wang, Zilong Zhang*, Yuan Gao, Suyi Zhao, Yuchen Jie, Changming Zhao

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摘要

Optical lattices (OLs) with diverse transverse patterns and optical vortex lattices (OVLs) with special phase singularities have played important roles in the fields of atomic cooling, particle manipulation, quantum entanglement, and optical communication. As a matter of consensus until now, the OL patterns are generated by coherently superimposing multiple transverse modes with a fixed phase difference through the transverse mode locking (TML) effect. There are phase singularities in the dark area of this kind of OL pattern, so it is also called OVL pattern. However, in our research, it is found that some high-order complex symmetric OL patterns can hardly be analyzed by TML model. Instead, the analysis method of incoherent superposition of mode intensity could be applied. The OL pattern obtained by this method can be regarded as in non-TML state. Therefore, in this article, we mainly study the distinct characteristics and properties of OL patterns in TML and non-TML states. Through intensity comparison, interferometry, and beat frequency spectrum, we can effectively distinguish OL pattern in TML and non-TML states, which is of significance to explore the formation of laser transverse pattern possessing OL.

源语言英语
文章编号801916
期刊Frontiers in Physics
9
DOI
出版状态已出版 - 3 1月 2022

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Wang, X., Zhang, Z., Gao, Y., Zhao, S., Jie, Y., & Zhao, C. (2022). Investigation on the Formation of Laser Transverse Pattern Possessing Optical Lattices. Frontiers in Physics, 9, 文章 801916. https://doi.org/10.3389/fphy.2021.801916