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27 January 2004 Research in free-space optical data transfer at the U.S. Naval Research Laboratory
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In this paper, a review of the progress and initiatives in free space optical data transfer and communications at the Naval Research Laboratory will be presented. NRL has been investing in R & D in optical communications, both conventional, and advanced. Efforts include developing amplifiers and components for lasers to be used in long range one-way and retro-reflected links. NRL has been developing Multiple Quantum Well retromodulators for space-based and terrestrial-based applications as well. These include spacecraft-to-spacecraft data links for navigation and communications, intra-bus networks on spacecraft, and optical tagging. Terrestrial applications in the eyesafe regime have led to additional studies in how the atmosphere affects one-way and modulated retroreflected signals in the maritime environment, in particular. New results in retro-diversity experiments, over-the-water propagation studies, and work in navigation and communications for supporting multi-spacecraft missions will be discussed.
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G. Charmaine Gilbreath and William S. Rabinovich "Research in free-space optical data transfer at the U.S. Naval Research Laboratory", Proc. SPIE 5160, Free-Space Laser Communication and Active Laser Illumination III, (27 January 2004);

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