Abstract

A coherent optical correlator can operate as a generator of complex waveforms when it is driven by a short-duration carrier pulse. However, the poor signal-to-noise ratio which results usually precludes operation in this mode. The ultrasonic shutter described herein can improve the signal-to-noise ratio by a factor approaching the time–bandwidth product of the system. No moving mechanical parts are involved.

© 1969 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. H. R. Carleton, W. T. Maloney, G. Meltz, “Collinear optical heterodyning in optical processors,” submitted to Proc. IEEE.
  2. G. Meltz, W. T. Maloney, Appl. Opt. 7, 2091 (1968).
    [CrossRef] [PubMed]
  3. W. A. Hiedemann, M. A. Breazeale, J. Opt. Soc. Amer. 49, 372 (1959) and references contained therein.
    [CrossRef]
  4. A. Korpel, L. J. Laub, H. C. Sievering, Appl. Phys. Lett. 10, 295 (1967).
    [CrossRef]
  5. M. Born, E. Wolf, Principles of Optics (Pergamon Press, Inc., London, 1959), p. 423.
  6. L. Slobodin, Proc. IEEE 51, 1782 (1963); M. Arm, L. Lambert, I. Weissman, Proc. IEEE 52, 842 (1964); N. F. Izzo, Proc. IEEE 53, 1740 (1965); M. Emshwiller, Bell Telephone Laboratories, private communication; M. King, W. R. Bennett, L. B. Lambert, M. Arm, Appl. Opt. 6, 1367 (1967); E. B. FelsteadAppl. Opt. 7, 105 (1968).
    [CrossRef] [PubMed]
  7. G. L. Turin, Inst. Radio Engs. Trans. IT-6, 311 (1960).
  8. L. K. Anderson, B. J. McMurtry, Appl. Opt. 5, 1573 (1966).
    [CrossRef] [PubMed]
  9. R. M. Wilmotte, U.S. Patent3,111,666; 19November1963.
  10. H. R. Carleton, W. T. Maloney, Proc. IEEE 55, 1077 (1967).
    [CrossRef]
  11. C. F. Quate, C. D. W. Wilkinson, D. K. Winslow, Proc. IEEE 53, 1604 (1965).
    [CrossRef]
  12. W. R. Klein, B. D. Cook, IEEE Trans. SU-14, 123 (1967).
  13. L. B. Lambert, in Modern RadarR. S. Berkowitz, Ed. (John Wiley & Sons, Inc., New York, 1965), p. 245.

1968

1967

W. R. Klein, B. D. Cook, IEEE Trans. SU-14, 123 (1967).

A. Korpel, L. J. Laub, H. C. Sievering, Appl. Phys. Lett. 10, 295 (1967).
[CrossRef]

H. R. Carleton, W. T. Maloney, Proc. IEEE 55, 1077 (1967).
[CrossRef]

1966

1965

C. F. Quate, C. D. W. Wilkinson, D. K. Winslow, Proc. IEEE 53, 1604 (1965).
[CrossRef]

1963

L. Slobodin, Proc. IEEE 51, 1782 (1963); M. Arm, L. Lambert, I. Weissman, Proc. IEEE 52, 842 (1964); N. F. Izzo, Proc. IEEE 53, 1740 (1965); M. Emshwiller, Bell Telephone Laboratories, private communication; M. King, W. R. Bennett, L. B. Lambert, M. Arm, Appl. Opt. 6, 1367 (1967); E. B. FelsteadAppl. Opt. 7, 105 (1968).
[CrossRef] [PubMed]

1960

G. L. Turin, Inst. Radio Engs. Trans. IT-6, 311 (1960).

1959

W. A. Hiedemann, M. A. Breazeale, J. Opt. Soc. Amer. 49, 372 (1959) and references contained therein.
[CrossRef]

Anderson, L. K.

Born, M.

M. Born, E. Wolf, Principles of Optics (Pergamon Press, Inc., London, 1959), p. 423.

Breazeale, M. A.

W. A. Hiedemann, M. A. Breazeale, J. Opt. Soc. Amer. 49, 372 (1959) and references contained therein.
[CrossRef]

Carleton, H. R.

H. R. Carleton, W. T. Maloney, Proc. IEEE 55, 1077 (1967).
[CrossRef]

H. R. Carleton, W. T. Maloney, G. Meltz, “Collinear optical heterodyning in optical processors,” submitted to Proc. IEEE.

Cook, B. D.

W. R. Klein, B. D. Cook, IEEE Trans. SU-14, 123 (1967).

Hiedemann, W. A.

W. A. Hiedemann, M. A. Breazeale, J. Opt. Soc. Amer. 49, 372 (1959) and references contained therein.
[CrossRef]

Klein, W. R.

W. R. Klein, B. D. Cook, IEEE Trans. SU-14, 123 (1967).

Korpel, A.

A. Korpel, L. J. Laub, H. C. Sievering, Appl. Phys. Lett. 10, 295 (1967).
[CrossRef]

Lambert, L. B.

L. B. Lambert, in Modern RadarR. S. Berkowitz, Ed. (John Wiley & Sons, Inc., New York, 1965), p. 245.

Laub, L. J.

A. Korpel, L. J. Laub, H. C. Sievering, Appl. Phys. Lett. 10, 295 (1967).
[CrossRef]

Maloney, W. T.

G. Meltz, W. T. Maloney, Appl. Opt. 7, 2091 (1968).
[CrossRef] [PubMed]

H. R. Carleton, W. T. Maloney, Proc. IEEE 55, 1077 (1967).
[CrossRef]

H. R. Carleton, W. T. Maloney, G. Meltz, “Collinear optical heterodyning in optical processors,” submitted to Proc. IEEE.

McMurtry, B. J.

Meltz, G.

G. Meltz, W. T. Maloney, Appl. Opt. 7, 2091 (1968).
[CrossRef] [PubMed]

H. R. Carleton, W. T. Maloney, G. Meltz, “Collinear optical heterodyning in optical processors,” submitted to Proc. IEEE.

Quate, C. F.

C. F. Quate, C. D. W. Wilkinson, D. K. Winslow, Proc. IEEE 53, 1604 (1965).
[CrossRef]

Sievering, H. C.

A. Korpel, L. J. Laub, H. C. Sievering, Appl. Phys. Lett. 10, 295 (1967).
[CrossRef]

Slobodin, L.

L. Slobodin, Proc. IEEE 51, 1782 (1963); M. Arm, L. Lambert, I. Weissman, Proc. IEEE 52, 842 (1964); N. F. Izzo, Proc. IEEE 53, 1740 (1965); M. Emshwiller, Bell Telephone Laboratories, private communication; M. King, W. R. Bennett, L. B. Lambert, M. Arm, Appl. Opt. 6, 1367 (1967); E. B. FelsteadAppl. Opt. 7, 105 (1968).
[CrossRef] [PubMed]

Turin, G. L.

G. L. Turin, Inst. Radio Engs. Trans. IT-6, 311 (1960).

Wilkinson, C. D. W.

C. F. Quate, C. D. W. Wilkinson, D. K. Winslow, Proc. IEEE 53, 1604 (1965).
[CrossRef]

Wilmotte, R. M.

R. M. Wilmotte, U.S. Patent3,111,666; 19November1963.

Winslow, D. K.

C. F. Quate, C. D. W. Wilkinson, D. K. Winslow, Proc. IEEE 53, 1604 (1965).
[CrossRef]

Wolf, E.

M. Born, E. Wolf, Principles of Optics (Pergamon Press, Inc., London, 1959), p. 423.

Appl. Opt.

Appl. Phys. Lett.

A. Korpel, L. J. Laub, H. C. Sievering, Appl. Phys. Lett. 10, 295 (1967).
[CrossRef]

IEEE Trans.

W. R. Klein, B. D. Cook, IEEE Trans. SU-14, 123 (1967).

Inst. Radio Engs. Trans.

G. L. Turin, Inst. Radio Engs. Trans. IT-6, 311 (1960).

J. Opt. Soc. Amer.

W. A. Hiedemann, M. A. Breazeale, J. Opt. Soc. Amer. 49, 372 (1959) and references contained therein.
[CrossRef]

Proc. IEEE

L. Slobodin, Proc. IEEE 51, 1782 (1963); M. Arm, L. Lambert, I. Weissman, Proc. IEEE 52, 842 (1964); N. F. Izzo, Proc. IEEE 53, 1740 (1965); M. Emshwiller, Bell Telephone Laboratories, private communication; M. King, W. R. Bennett, L. B. Lambert, M. Arm, Appl. Opt. 6, 1367 (1967); E. B. FelsteadAppl. Opt. 7, 105 (1968).
[CrossRef] [PubMed]

H. R. Carleton, W. T. Maloney, Proc. IEEE 55, 1077 (1967).
[CrossRef]

C. F. Quate, C. D. W. Wilkinson, D. K. Winslow, Proc. IEEE 53, 1604 (1965).
[CrossRef]

Other

R. M. Wilmotte, U.S. Patent3,111,666; 19November1963.

M. Born, E. Wolf, Principles of Optics (Pergamon Press, Inc., London, 1959), p. 423.

L. B. Lambert, in Modern RadarR. S. Berkowitz, Ed. (John Wiley & Sons, Inc., New York, 1965), p. 245.

H. R. Carleton, W. T. Maloney, G. Meltz, “Collinear optical heterodyning in optical processors,” submitted to Proc. IEEE.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (3)

Fig. 1
Fig. 1

Coherent optical processor. A Debye-Sears ultrasonic light modulator and transparent mask are employed to achieve collinear heterodyne detection in real time.

Fig. 2
Fig. 2

The system of Fig. 1 augmented by the ultrasonic shutter. A second Debye-Sars ultrasonic modulator between crossed polarizers produces a scanning spot of illumination.

Fig. 3
Fig. 3

Comparison of system response with and without the ultrasonic shutter: (a) shutter not present; (b) shutter present; (c) shutter present, vertical scale magnified 5× to reveal improvement in signal-to-noise ratio; (d) and (e) background noise when drive signal to either of the modulators is removed.

Equations (2)

Equations on this page are rendered with MathJax. Learn more.

R ( t ) α β aperture u ( t - x / a ) w ( x / a ) d ( x / a ) .
R ( t ) δ ( t - x / a ) w ( x / a ) d ( x / a ) = w ( t ) .

Metrics