Extended-range digital holographic imaging

J. C. Marron; R. L. Kendrick; S. T. Thurman; N. L. Seldomridge; T. D. Grow; C. W. Embry; A. T. Bratcher

doi:10.1117/12.862559

29 April 2010 Extended-range digital holographic imaging

J. C. Marron, R. L. Kendrick, S. T. Thurman, N. L. Seldomridge, T. D. Grow, C. W. Embry, A. T. Bratcher

Proceedings Volume 7684, Laser Radar Technology and Applications XV; 76841J (2010) https://doi.org/10.1117/12.862559
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

We report the results of experiments demonstrating large-format coherent imaging at a range of 1.5 km. For this work, we use digital holographic detection to record coherent data and are thus able to measure the complex-valued optical field from a flood-illuminated scene over an extended aperture. Images are formed using digital Fourier processing. The return light is interfered with a coherent reference beam, and the intensity of the interference pattern is recorded using a conventional large-format detector array. Experimental results obtained using a coherent, pulsed laser source operating at 1.6 microns are presented. We also demonstrate the utility of this technique for advanced imaging functions such as 3D imaging.

Citation Download Citation

J. C. Marron, R. L. Kendrick, S. T. Thurman, N. L. Seldomridge, T. D. Grow, C. W. Embry, and A. T. Bratcher "Extended-range digital holographic imaging", Proc. SPIE 7684, Laser Radar Technology and Applications XV, 76841J (29 April 2010); https://doi.org/10.1117/12.862559

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