Free Space Optical Communications Utilizing MEMS Adaptive Optics Correction
Free space optical communications (FSO) are beginning to provide attractive alternatives to fiber-based solutions in many situations. Currently, a handful of companies provide fiberless alternatives specifically aimed at corporate intranet and sporting event video applications. These solutions are geared toward solving the ''last mile'' connectivity issues. There exists a potential need to extend this pathlength to distances much greater than a 1 km, particularly for government and military applications. For cases of long distance optical propagation, atmospheric turbulence will ultimately limit the maximum achievable data rate. In this paper, we propose a method to improve signal quality through the use of adaptive optics. In particular, we show work in progress toward a high-speed, small footprint Adaptive Optics system for horizontal and slant path laser communications. Such a system relies heavily on recent progress in Micro-Electro-Mechanical Systems (MEMS) deformable mirrors, as well as improved communication and computational components.
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- Resource Relation:
- Conference: International Symposium on Optical Science and Technology, Seattle, WA, Jul 07 - Jul 11, 2002
- Research Org:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA
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- Country of Publication:
- United States
- 42 ENGINEERING; 47 OTHER INSTRUMENTATION; COMMUNICATIONS; LASERS; MIRRORS; OPTICS; TURBULENCE
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