Abstract

Random phase diffusers used to individually code the reference beams employed in multiplexing a set of holograms are best characterized by their autocorrelation and cross-correlation properties. In this paper multilevel (n-level) phase diffusers and ground-glass diffuser models based on a spatial random telegraph wave are employed to investigate the performance of such diffusers for both plane wave and spherical wave illumination. The advantage of using balanced phase diffusers is indicated, and it is shown that a binary phase diffuser can, in principle, perform as well as a multilevel (n > 2) diffuser, and even as well as ground glass if the spatial fineness of the diffusers is comparable. Two signal-to-noise ratio measures of the performance of the various diffuser systems in a multiplex holography application are evaluated and discussed.

© 1982 Optical Society of America

Multiplex hologram representations of space-variant optical systems using ground-glass encoded reference beams

Mike I. Jones, John F. Walkup, and Marion O. Hagler
Appl. Opt. 21(7) 1291-1297 (1982)

Multiplex holography with chirp-modulated binary phase-coded reference-beam masks

Thomas F. Krile, Marion O. Hagler, Wesley D. Redus, and John F. Walkup
Appl. Opt. 18(1) 52-56 (1979)

Linear recording of Fourier transform holograms using a pseudorandom diffuser

Yoshikazu Nakayama and Makoto Kato
Appl. Opt. 21(8) 1410-1418 (1982)

Non-Gaussian speckle: a computer simulation

Junji Ohtsubo
Appl. Opt. 21(22) 4167-4175 (1982)

Imaging with photographic diffusers

C. P. Grover and R. Tremblay
Appl. Opt. 21(24) 4500-4504 (1982)