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Study of rain attenuation with diversity of wavelengths propagation transmission in tropical rainforest region

This paper examine about the selecting of wavelength in effecting the laser transmission over the free space spatial under the rain circumstances. The wavelengths used in these computation experiment theory are 780 nm, 850 nm, 1550 nm and 10000 nm. Comparison of the experiment result is measured in various types of rain such as drizzle, light rain, medium rain, heavy rain, cloudburst, extreme rain and very extreme rain. Visual range and scattering coefficient of rain is depending on wavelength utilize. This observation is based on an extensive literature search and from Mie scattering calculation.