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dc.description.abstractLight emitting diodes or LEDs, which are special for telecommunications, and laser diodes were characterized. A free space optical data transmitter and its corresponding receptor were built. A power of 10mW semiconducting laser with a wavelength of ? 640 nm was tested. It was possible to modulate this laser with a digital signal at a speed of 40 Mbs and to transmit the information for a distance of 250 meters. A LED of high power was tested With this LED it was possible to increase modulation speed with frequencies higher to 5OMbs, but the distance covered by this laser was of only 180 meters due to light diffraction. The LED generates at the wavelength of X=650nm. The diffraction phenomenon was corrected using the appropriate opticsspa
dc.rightsAtribución-NoComercial-CompartirIgual 2.5 Colombia*
dc.titleThe construction of a prototype of a 5OMBS free space laser optic transmitterspa
dc.subject.keywordDiode laserspa
dc.coverage.campusCRAI-USTA Bogotáspa
dc.relation.referencesChien- Chung Cheng, Chester S. Gardner, "Impact ofrandom pointing and tracking errors on the design of coherent and incoherent optical intersatellite communication links,"IEEE Trans on Comm; vol.37, n°3, pp. 252-260, March 1989spa
dc.relation.referencesrian R. Strickland, Michael J. Lavan, Eric Woodbridge, and Victor Chan, "Effect of fog on the bit —error rate ofa free- space laser communication system", App!. Optic, vol. 38; n° 3, pp. 424-431, January 1999spa
dc.relation.referencesing fuchang, "High-speed atmosphere laser digital communication system", Proceedings os SPIE,Vol. 4225, pp.223-227, 2000spa
dc.relation.referenceshen Dianren Li, Hongzhuo Li guiying " Study on CO2 Laser atmosphere relay digital communication system", Proceedings os SPIE,Vol. 4225, pp.3 19-322, 2000spa
dc.relation.referenceshiomi Arnon, Stanly Rotman, and Norman S. Kopeika " Beamwidth and transmitter power adaptive to tracking system performance for free-space optical communication ", Applied Opt. Vol. 36. n° 24, pp. 6095-6101, August
dc.relation.referencesS. Arnon and N.S. Kopeika, "Adaptive suboptimum detection of an optical pulse — position — modulation signal with a detection matrix and centroid tracking", J. Opt. Soc. Am. A, Vol. 15, n° 2, pp. 443-448 February
dc.relation.referencesn Wang, Joseph M. Kahn, And Kam Y. Lau" Minimization of acquisition time in short-range free- space optical communication", Applied Opt. Vol. 41. n° 36, pp. 7592-7602, December 2002spa
dc.type.categoryGeneración de Nuevo Conocimiento: Artículos publicados en revistas especializadas - Electrónicosspa

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Atribución-NoComercial-CompartirIgual 2.5 Colombia
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