Abstract

This paper describes an acoustooptic technique for achieving signal correlation with a time-bandwidth product of 106–108, using existing devices. One signal is used to intensity modulate a light beam that illuminates an acoustic cell. The other signal appears in the cell as a traveling wave and is Schlieren imaged onto a detector array. The detected image intensity is integrated in time, achieving the desired correlation function. Since the correlation integration is performed in time rather than space, the time-bandwidth limitations of earlier acoustooptic correlators are greatly reduced. Experimental procedures for implementation of this technique are discussed and results shown.

© 1976 Optical Society of America

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References

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  1. L. J. Cutrona, E. N. Leith, C. T. Palermo, L. J. Porcello, IRE Trans. Info. Theory IV-6, 386 (1960).
    [CrossRef]
  2. L. Slobodin, Proc. IEEE 51, 1782 (1963).
    [CrossRef]
  3. A. Reich, L. Slobodin, presented at the National Aerospace Electronics Conference, Dayton, Ohio, May 8, 1961.
  4. A. Arm, L. Lambert, I. Weissman, L. Slobodin, Proc. IEEE 52, 842 (1964).
    [CrossRef]
  5. W. J. Maloney, IEEE Spectrum 6, 40 (1969).
    [CrossRef]
  6. R. W. Damon, W. J. Maloney, D. H. McMahon, in Physical Acoustics, W. P. Mason, Ed. (Academic, New York, 1970), p. 273.
  7. C. Atzeni, Electro-Opt. Syst. Des. 3, 22 (1971).
  8. E. Skurnick, M. King, J. Opt. Soc. Am. 63, 473 (1973).
  9. M. Gottlieb, J. J. Convoy, Appl. Opt. 12, 8 (1973).
    [CrossRef]
  10. W. E. Mahen, G. Roome, Appl. Opt. 13, 1342 (1974).
    [CrossRef]
  11. M. P. Wenkuff, M. Katchy, Appl. Opt. 9, 135 (1970).
    [CrossRef]
  12. K. Bromley, Opt. Acta 21, 35 (1974).
    [CrossRef]
  13. Reticon Data Sheet 37235.
  14. J. P. Wittke, EDN 20, 30 (1975).

1975 (1)

J. P. Wittke, EDN 20, 30 (1975).

1974 (2)

1973 (2)

E. Skurnick, M. King, J. Opt. Soc. Am. 63, 473 (1973).

M. Gottlieb, J. J. Convoy, Appl. Opt. 12, 8 (1973).
[CrossRef]

1971 (1)

C. Atzeni, Electro-Opt. Syst. Des. 3, 22 (1971).

1970 (1)

1969 (1)

W. J. Maloney, IEEE Spectrum 6, 40 (1969).
[CrossRef]

1964 (1)

A. Arm, L. Lambert, I. Weissman, L. Slobodin, Proc. IEEE 52, 842 (1964).
[CrossRef]

1963 (1)

L. Slobodin, Proc. IEEE 51, 1782 (1963).
[CrossRef]

1960 (1)

L. J. Cutrona, E. N. Leith, C. T. Palermo, L. J. Porcello, IRE Trans. Info. Theory IV-6, 386 (1960).
[CrossRef]

Arm, A.

A. Arm, L. Lambert, I. Weissman, L. Slobodin, Proc. IEEE 52, 842 (1964).
[CrossRef]

Atzeni, C.

C. Atzeni, Electro-Opt. Syst. Des. 3, 22 (1971).

Bromley, K.

K. Bromley, Opt. Acta 21, 35 (1974).
[CrossRef]

Convoy, J. J.

M. Gottlieb, J. J. Convoy, Appl. Opt. 12, 8 (1973).
[CrossRef]

Cutrona, L. J.

L. J. Cutrona, E. N. Leith, C. T. Palermo, L. J. Porcello, IRE Trans. Info. Theory IV-6, 386 (1960).
[CrossRef]

Damon, R. W.

R. W. Damon, W. J. Maloney, D. H. McMahon, in Physical Acoustics, W. P. Mason, Ed. (Academic, New York, 1970), p. 273.

Gottlieb, M.

M. Gottlieb, J. J. Convoy, Appl. Opt. 12, 8 (1973).
[CrossRef]

Katchy, M.

King, M.

E. Skurnick, M. King, J. Opt. Soc. Am. 63, 473 (1973).

Lambert, L.

A. Arm, L. Lambert, I. Weissman, L. Slobodin, Proc. IEEE 52, 842 (1964).
[CrossRef]

Leith, E. N.

L. J. Cutrona, E. N. Leith, C. T. Palermo, L. J. Porcello, IRE Trans. Info. Theory IV-6, 386 (1960).
[CrossRef]

Mahen, W. E.

Maloney, W. J.

W. J. Maloney, IEEE Spectrum 6, 40 (1969).
[CrossRef]

R. W. Damon, W. J. Maloney, D. H. McMahon, in Physical Acoustics, W. P. Mason, Ed. (Academic, New York, 1970), p. 273.

McMahon, D. H.

R. W. Damon, W. J. Maloney, D. H. McMahon, in Physical Acoustics, W. P. Mason, Ed. (Academic, New York, 1970), p. 273.

Palermo, C. T.

L. J. Cutrona, E. N. Leith, C. T. Palermo, L. J. Porcello, IRE Trans. Info. Theory IV-6, 386 (1960).
[CrossRef]

Porcello, L. J.

L. J. Cutrona, E. N. Leith, C. T. Palermo, L. J. Porcello, IRE Trans. Info. Theory IV-6, 386 (1960).
[CrossRef]

Reich, A.

A. Reich, L. Slobodin, presented at the National Aerospace Electronics Conference, Dayton, Ohio, May 8, 1961.

Roome, G.

Skurnick, E.

E. Skurnick, M. King, J. Opt. Soc. Am. 63, 473 (1973).

Slobodin, L.

A. Arm, L. Lambert, I. Weissman, L. Slobodin, Proc. IEEE 52, 842 (1964).
[CrossRef]

L. Slobodin, Proc. IEEE 51, 1782 (1963).
[CrossRef]

A. Reich, L. Slobodin, presented at the National Aerospace Electronics Conference, Dayton, Ohio, May 8, 1961.

Weissman, I.

A. Arm, L. Lambert, I. Weissman, L. Slobodin, Proc. IEEE 52, 842 (1964).
[CrossRef]

Wenkuff, M. P.

Wittke, J. P.

J. P. Wittke, EDN 20, 30 (1975).

Appl. Opt. (3)

EDN (1)

J. P. Wittke, EDN 20, 30 (1975).

Electro-Opt. Syst. Des. (1)

C. Atzeni, Electro-Opt. Syst. Des. 3, 22 (1971).

IEEE Spectrum (1)

W. J. Maloney, IEEE Spectrum 6, 40 (1969).
[CrossRef]

IRE Trans. Info. Theory (1)

L. J. Cutrona, E. N. Leith, C. T. Palermo, L. J. Porcello, IRE Trans. Info. Theory IV-6, 386 (1960).
[CrossRef]

J. Opt. Soc. Am. (1)

E. Skurnick, M. King, J. Opt. Soc. Am. 63, 473 (1973).

Opt. Acta (1)

K. Bromley, Opt. Acta 21, 35 (1974).
[CrossRef]

Proc. IEEE (2)

L. Slobodin, Proc. IEEE 51, 1782 (1963).
[CrossRef]

A. Arm, L. Lambert, I. Weissman, L. Slobodin, Proc. IEEE 52, 842 (1964).
[CrossRef]

Other (3)

A. Reich, L. Slobodin, presented at the National Aerospace Electronics Conference, Dayton, Ohio, May 8, 1961.

R. W. Damon, W. J. Maloney, D. H. McMahon, in Physical Acoustics, W. P. Mason, Ed. (Academic, New York, 1970), p. 273.

Reticon Data Sheet 37235.

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Figures (6)

Fig. 1
Fig. 1

Time integrating acoustooptic correlator.

Fig. 2
Fig. 2

Experimental test setup.

Fig. 3
Fig. 3

Diffracted intensity as a function of peak-to-peak signal voltage for sinusoidal input.

Fig. 4
Fig. 4

Correlator output image for a 5-MHz square wave input.

Fig. 5
Fig. 5

Correlator output signal for an 8-MHz random noise signal—integration time = 60 msec: upper, unexpanded scale—1 μsec/cm; lower, expanded scale—0.1 μsec/cm.

Fig. 6
Fig. 6

Correlator output signal for a random length binary code— integration time = 60 msec.

Equations (5)

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I 1 ( t ) = V 1 + S 1 ( t ) ;
I 2 ( x , t ) = [ V 1 + S 1 ( t ) ] [ V 2 + S 2 ( x + υ t ) ] .
I 2 ( x ) i = 0 T [ V 1 + S 1 ( t ) ] [ V 2 + S 2 ( x + υ t ) ] ,
I 2 ( x ) i = V 1 V 2 T 2 + 0 T S 1 ( t ) S 2 ( x + υ t ) dt .
I = I 0 sin 2 KV ,

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