| 自由空问光通信系统的激光器发射功率的研究 |
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| 引用本文： | 王欣,陈志祥,徐荣青.自由空问光通信系统的激光器发射功率的研究[J].华东船舶工业学院学报,2005,19(5):53-56. |
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| 作者姓名： | 王欣 陈志祥 徐荣青 |
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| 摘 要： | 根据激光在自由空间的传输理论，推导出了接受功率的表达式，进而研究了激光通信距离、激光发散角、大气衰减系数及探测器灵敏度对激光器发射功率的要求，结果表明通信距离越长，激光发散角越大，大气衰减系数越大，探测器灵敏度越小，要实现正常通信，激光器的发射功率要越大。
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| 关 键 词： | 自由空间光通信 发射功率 通信距离 |
| 文章编号： | 1006-1088（2005）05-0053-04 |
| 收稿时间： | 2004-12-14 |
Research on Laser Launch Power in Free Space Optics System |
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| WANG Xin , CHEN Zhi-xiang , XU Rong-qing.Research on Laser Launch Power in Free Space Optics System[J].Journal of East China Shipbuilding Institute(Natural Science Edition),2005,19(5):53-56. |
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| Authors: | WANG Xin CHEN Zhi-xiang XU Rong-qing |
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| Institution: | School of Electronics and Information, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China |
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| Abstract: | According to the free space transmission theory of laser, the expression of the received power is deduced. The requirements of laser launch power by laser communication ranger, laser disperse angle, the atmosphere degeneration coefficient and the sounder sensitivity are studied. It is shown that the sounder sensitivity is in the inverse ratio with laser communication ranger, laser disperse angle and the atmosphere degeneration coefficient. Greater launch power will be needed to realize normal communication. |
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| Keywords: | free space optics launch power communication ranger |
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