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The goal of the paper is to compare turbulent attenuation calculated by Rytov relations and the method of available power as well as determine maximal range of free space optical link on the basis of communication margin.
This work is focused on the free space optical links and the laser beam transmission via atmospheric transmission media. Meteorological visibility is presented in the work as well as Kim and Kruse models for determination of atmospheric attenuation. Model of the free space optical link is briefly described in the paper and typical parameters of the optical wireless link are mentioned. Conception of...
This paper is focused on the Gaussian beam properties in the turbulent atmosphere. At first the optical wireless link is briefly introduced and the atmospheric transmission media is presented. The atmospheric turbulences are introduced and laser beam geometry is analyzed. For the Gaussian beam in the turbulent atmosphere we can calculate correlation between influenced laser beam and ideal Gaussian...
Requirements on computer networks speed are steadily increasing. Unfortunately it is not possible to use a classic fiber optic backbone networks in all areas due to very high cost of this system. High altitude platform system offers communication on long distance with a great degree of flexibility. In combination with free space optics it provides low cost solution with high rate-speed. However as...
Present day optical wireless communication systems work with wavelength of 1550 nm but it is considering whether optical communication at 850 nm offers more benefits. Currently we don't know answer on the question which optical window is more reasonable to use in free space optical links but we try to solve this problem. This paper is focusing on the relation between laser diode operating temperature...
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