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Proceedings Paper

Energy flux conservation law and scintillation-free laser communication system demonstration
Author(s): Mikhail Belen'kii; David Herr
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Paper Abstract

We discussed the energy flux conservation law and noted that for all turbulence realizations atmospheric turbulence causes exclusively internal redistribution of laser irradiance inside the laser beam, whereas total energy flux stays the same. We proposed to use an energy flux preserving system architecture in laser communication systems. This architecture reduces the effect of turbulence-induced scintillation on the bit error-rate (BER) to zero and allows us to achieve free-space performance in the presence of strong turbulence using a low power laser. We performed two field demonstrations of the scintillation-free laser communication (SFLC) system using a static retro-reflector. In these demonstrations a BER<10-10 was routinely measured at 0.5 km range in daytime sea-level turbulence using a 10 mW laser. We discussed an implementation of the SFLC system and benefits provided by this system. We concluded that for any practical application, the benefit provided by SFLC, namely, its ability to achieve an exceptionally low bit-error-rate (BER) using a low power laser, should be compared with the system cost and complexity.

Paper Details

Date Published: 12 September 2005
PDF: 11 pages
Proc. SPIE 5892, Free-Space Laser Communications V, 589214 (12 September 2005); doi: 10.1117/12.614141
Show Author Affiliations
Mikhail Belen'kii, Trex Enterprises Corp. (United States)
David Herr, Trex Enterprises Corp. (United States)

Published in SPIE Proceedings Vol. 5892:
Free-Space Laser Communications V
David G. Voelz; Jennifer C. Ricklin, Editor(s)

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