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首页> 外文会议>RIAO/OPTILAS 2004 >The construction of a prototype of a 50MBS free space laser optic transmitter
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The construction of a prototype of a 50MBS free space laser optic transmitter

机译：50MBS自由空间激光发射器原型的构建

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Light 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 50Mbs, but the distance covered by this laser was of only 180 meters due to light diffraction. The LED generates at the wavelength of λ=650nm. The diffraction phenomenon was corrected using the appropriate optics.
机译：表征了电信专用的发光二极管或LED和激光二极管。建立了自由空间光学数据发送器及其相应的接收器。功率为10mW的半导体激光器，其波长为？ ＝ 640nm被测试。可以用数字信号以40 Mbs的速度调制此激光器，并在250米的距离内传输信息。测试了一个大功率的LED，使用此LED可以提高调制速度，使其频率提高到50Mbs，但是由于光衍射，该激光器的覆盖距离仅为180米。 LED以λ＝ 650nm的波长产生。使用适当的光学元件校正了衍射现象。

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