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 (1)

1967 (3)

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]

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

1966 (1)

1965 (1)

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

1963 (1)

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 (1)

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

1959 (1)

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. (2)

Appl. Phys. Lett. (1)

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

IEEE Trans. (1)

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

Inst. Radio Engs. Trans. (1)

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

J. Opt. Soc. Amer. (1)

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

Proc. IEEE (3)

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 (4)

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.

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

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

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