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This article deals with the design of construction of new type of transmitter for indoor Free Space Optic (FSO) networks. This transmitter will be able to provide the lighting and communication at the same time. Thanks to special solution in spectral characteristic of transmitted light it is necessary to use two LED diodes radiation sources. The light beams of these LED diodes have to be spatially...
This article is focused on the atmospheric turbulences and their effect on optical beam. The Free Space Optics link with atmospheric turbulences was created in software OptiSystem. The results given by software are compared with Andrews's method. Free Space Optics link worked at wavelengths 850 nm and 1550 nm.
This article describes an intensity distribution of optical beam in the far field. In free space communication laser transmitters, optical lenses and other components are used. When an optical beam impacts optical lens, the diffraction can appear at the edge of lens. A laser transmitted optical beam whose intensity distribution was Gaussian. This beam was aimed at the circular apertures of different...
Fiber optic sensors come in useful in the various fields of industry. Advantages of optic fiber sensors are based on the properties of optical fibers and partly profits from their technological development. The fiber optic temperature sensors use different kinds of sensing, all of them reach the upper sensing limit about 600°C. The aim of this article is to introduce a principle of sensor which is...
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