Performance of an optical wireless communication system as a function of wavelength
Performance of an optical wireless communication system as a function of wavelength
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DOI：
10.1109/eeei.2002.1178461
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发表时间：
2002-12
期刊：
影响因子：
--
通讯作者：
Haim Manor;S. Arnon
中科院分区：
文献类型：
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作者：
Haim Manor;S. Arnon
自由空间光通信最近因其各种应用而引起了相当大的关注。特别关注恶劣的天气条件和背景辐射如何影响通过大气的传输。由于这些影响，激光通信（lasercom）系统的性能极其依赖于激光传输波长。现有的天气统计测量表明，使用中红外和远红外激光源可以减轻天气影响。在这种情况下，新型多功能量子级联激光器 (QCL) 可以为这一问题提供可行的解决方案，该激光器经过调整可在中波和长波红外（MWIR 和 LWIR）3-20 /spl mu/m 波段的大气窗口区域内运行。在这项工作中，我们分析了激光通信系统性能在不同天气条件下的波长依赖性，以便就 0.4-20 /spl mu/m 波段内的优选传输波长提出建议。
Free-space optical communication has attracted considerable attention recently for a variety of applications. Special attention has been paid to how adverse weather conditions and background radiation affect transmission through the atmosphere. Due to these effects, the performance of laser communication (lasercom) systems is extremely dependent on the laser transmission wavelength. Available weather statistic measurements indicate that weather effects can be mitigated by using medium and far-IR laser sources. In that case, the new and versatile quantum cascade lasers (QCLs), which are adjusted to operate within the atmospheric window regions in the mid-wave and long-wave IR (MWIR and LWIR) 3-20 /spl mu/m wavelength band, can provide a viable solution to this problem. In this work, we analyze the wavelength dependence of lasercom system performance under different weather conditions for the purpose of making recommendations on preferable transmission wavelengths within the 0.4-20 /spl mu/m band.