TY - JOUR
T1 - Investigation on the Formation of Laser Transverse Pattern Possessing Optical Lattices
AU - Wang, Xin
AU - Zhang, Zilong
AU - Gao, Yuan
AU - Zhao, Suyi
AU - Jie, Yuchen
AU - Zhao, Changming
N1 - Publisher Copyright:
Copyright © 2022 Wang, Zhang, Gao, Zhao, Jie and Zhao.
PY - 2022/1/3
Y1 - 2022/1/3
N2 - 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.
AB - 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.
KW - laser transverse patterns
KW - optical lattice
KW - optical vortex lattice
KW - structured light
KW - transverse mode locking
UR - http://www.scopus.com/inward/record.url?scp=85123221537&partnerID=8YFLogxK
U2 - 10.3389/fphy.2021.801916
DO - 10.3389/fphy.2021.801916
M3 - Article
AN - SCOPUS:85123221537
SN - 2296-424X
VL - 9
JO - Frontiers in Physics
JF - Frontiers in Physics
M1 - 801916
ER -