title: Phase-modulated multigroup volume holographic correlator.
abstract: 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.
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China. nikai99@mails.tsinghua.edu.cn
authors.forename: Kai
authors.initials: K
authors.lastname: Ni
authors.forename: Wei
authors.initials: W
authors.lastname: Ren
authors.forename: Zongyao
authors.initials: Z
authors.lastname: Qu
authors.forename: Liangcai
authors.initials: L
authors.lastname: Cao
authors.forename: Qingsheng
authors.initials: Q
authors.lastname: He
authors.forename: Guofan
authors.initials: G
authors.lastname: Jin