Phase-modulated multigroup volume holographic correlator.
We propose a hybrid multiplexing method for volume holographic correlators based on the combination of orthogonal random phase modulation of an object beam and two-dimensional angular multiplexing of a reference beam. This method implements storing multiple groups of library images in a single storage location and outputting multiple groups of correlation spots by switching the modulation phase masks. Three experiments are designed to test the validity of this method.
Ni
Kai
K
State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China. nikai99@mails.tsinghua.edu.cn
Ren
Wei
W
Qu
Zongyao
Z
Cao
Liangcai
L
He
Qingsheng
Q
Jin
Guofan
G