Abstract

The perfect shuffle permutation is an important interconnection scheme in digital optical computing. Various methods suggested for the optical implementation of the perfect shuffle need an anamorphic imaging system. Instead of cylinder lenses Brewster prism telescopes can be used to achieve the desired ratio of 2:1 for horizontal and vertical magnifications. To reduce the rather large distortion of prism telescopes the Brewster concept can be combined with the Amici concept of a straight view dispersion prism.

© 1989 Optical Society of America

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References

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  1. A. W. Lohmann, W. Stork, G. Stucke, “Optical Perfect Shuffle,” Appl. Opt. 25, 1530 (1986).
    [CrossRef] [PubMed]
  2. K.-H. Brenner, A. Huang, “Optical Implementations of the Perfect Shuffle Interconnection,” Appl. Opt. 27, 135 (1988).
    [CrossRef] [PubMed]
  3. J. R. M. Barr, “Achromatic Prism Beam Expanders,” Opt. Commun. 51, 41 (1984).
    [CrossRef]

1988 (1)

1986 (1)

1984 (1)

J. R. M. Barr, “Achromatic Prism Beam Expanders,” Opt. Commun. 51, 41 (1984).
[CrossRef]

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Figures (8)

Fig. 1
Fig. 1

Concept of a Brewster telescope.

Fig. 2
Fig. 2

Brewster telescope without a lateral shift.

Fig. 3
Fig. 3

Afocal imaging system for anamorphic magnification.

Fig. 4
Fig. 4

Brewster telescope with two straight view prisms due to Amici.

Fig. 5
Fig. 5

Magnification as a function of the entrance angle: solid line corresponds to Fig. 4; dotted line corresponds to Fig. 1.

Fig. 6
Fig. 6

Wadsworth spectral prism (straight view).

Fig. 7
Fig. 7

Brewster-Wadsworth telescope with a mirror.

Fig. 8
Fig. 8

Brewster-Wadsworth telescope with total internal reflection.

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