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Applied Optics

Applied Optics


  • Vol. 15, Iss. 11 — Nov. 1, 1976
  • pp: 2913–2916

Enhanced focal-plane irradiance in the presence of thermal blooming

C. Yeh, J. E. Pearson, and W. P. Brown, Jr  »View Author Affiliations

Applied Optics, Vol. 15, Issue 11, pp. 2913-2916 (1976)

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The use of multiple transmitter beams is shown to significantly increase the peak focal-plane irradiance that can be achieved in the presence of thermal blooming. Computer simulation studies of the beam propagation problem show over a factor of 2 increase in the irradiance of a single beam and a factor of 9 increase when three coherent beams are focused on the same target spot. Preliminary experimental results with three mutually noncoherent, nonoverlapping beams are in qualitative agreement with the computer simulation.

© 1976 Optical Society of America

Original Manuscript: November 19, 1975
Published: November 1, 1976

C. Yeh, J. E. Pearson, and W. P. Brown, "Enhanced focal-plane irradiance in the presence of thermal blooming," Appl. Opt. 15, 2913-2916 (1976)

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  1. W. P. Brown, J. E. Pearson, “Multidither COAT Compensation for Thermal Blooming and Turbulence: Experimental and Computer Simulations Results (U),” presented at First DoD Conference on High Energy Laser Technology, San Diego, Calif., October 1974; J. E. Pearson, “COAT Measurements and Analysis,” RADC-TR-75-101, May1975, available from NTIS or RADC.
  2. F. G. Gebhardt, D. C. Smith, IEEE J. Quantum Electron. QE-7, 63 (1971).
  3. E. H. Tahken, D. M. Cordroy, Appl. Opt. 13, 2753 (1974).
  4. L. C. Bradley, J. Herrman, Appl. Opt. 13, 331 (1974).
  5. W. B. Bridges, J. E. Pearson, Appl. Phys. Lett. 26, 539 (1975).
  6. J. E. Pearson, W. B. Bridges, S. Hansen, T. A. Nussmeier, M. E. Pedinoff, Appl. Opt. 15, 611, (1976).
  7. J. Wallace, I. Itzkam, J. Camm, J. Opt. Soc. Am. 64, 1123 (1974).
  8. J. E. Pearson, C. Yeh, W. P. Brown, to be published in J. Opt. Soc. Am.66, No. 11 (Nov.1976).
  9. D. B. Hall, C. Yeh, J. Appl. Phys. 44, 2271 (1973).
  10. R. L. Abrams, W. B. Bridges, IEEE J. Quantum Electron. QE-9, 940 (1973).
  11. This optimization could even be done automatically using techniques similar to those in Ref. 1, 4, and 6.
  12. W. P. Brown, unpublished.

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