Speckle effects on intersatellite laser communication

W.L. Bremer
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Abstract

The importance of simulated far-field testing of laser intersatellite communication systems is demonstrated through experience gained with and tests performed on a prototype system. It is shown that the performance of the link can be seriously degraded if the magnitude and dynamics of the speckle in the projected far field are not limited or controlled in some manner. System performance is controlled by screening of laser diode/fiber assemblies. Other potential techniques to minimize the impact of speckle are addressed.<>
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星间激光通信中的散斑效应
通过在原型系统上进行的试验和获得的经验,证明了对激光星间通信系统进行模拟远场测试的重要性。结果表明,如果不以某种方式限制或控制投影远场中散斑的大小和动态,则链路的性能会严重下降。系统性能是通过筛选激光二极管/光纤组件来控制的。其他潜在的技术,以尽量减少斑点的影响
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