Dynamic Mach-Zehnder interferometer based on the lateral displacement of a point source array
Posted on 2018-07-10 - 14:24
A dynamic Mach-Zehnder interferometer based on lateral displacement of a point source array is proposed. The point source array is generated by a point source and a phase grating, where four point sources are of identical intensity. The lateral displacement of each point source can be adjusted to introduce π/2 phase step in the interferograms. With a specially designed lens array in the spatial split imaging system, four separated and clear imaging interferograms can be captured in a single shot. Using four-bucket algorithm, the phase distribution can be retrieved exactly, thereby realizing dynamic measurement. The experimental results show the feasibility and high precision of the dynamic Mach-Zehnder interferometer.
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Ding, Yu; Chen, Lei; Kong, Lu; Yang, Ying; Liu, Zhiyuan; Sun, Qinyuan; et al. (2018). Dynamic Mach-Zehnder interferometer based on the lateral displacement of a point source array. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.4128788.v1
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AUTHORS (7)
YD
Yu Ding
LC
Lei Chen
LK
Lu Kong
YY
Ying Yang
ZL
Zhiyuan Liu
QS
Qinyuan Sun
DZ
Donghui Zheng