In this research, an analytical study of laser communication in water of shatt Al -Hilla using laser source at different wavelengths ( 407nm ,473nm ,532nm ,632nm and 810nm) transport through samples of water have different turbidity ( clear , low turbid andhigh turbid ). Blue laser light was employed as the carrier signal for the reason that itcould proceed under water with lowest Absorption coefficient ( 3.0 cm-1) , maximum transmission distance ( 78m ) and Minimum distortion in signal , from the another laser
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