Performance study of wireless optical communication system under Euphrates River Water

Abstract

An underwater wireless optical communication system has implemented utilizing IM/DD-FM through Euphrates river water channel. the wavelengths (650,532,405) nm has used to modulated the frequency over optical signals with an optical power (50) mw, (7) mw and (6) mw receptively. The information signal (3.3) kHz has achieved for Euphrates river water channel. The results benefit that the wavelength 650 nm outperforms than 532nm and 405nm in the proposed water channel. The maximum transmission reaches to (3) m for 650nm wavelength and (2) m for the others wavelengths. Signal to noise ratio, Power and laser beam profile has calculated then demonstrated an accepted value for the utilized wavelengths under the proposed system.

Keywords: Optical Communications, Signal to Noise ratio, Direct Detection -Intensity Modulation, Euphrates River.