Design and Analysis of Optical Communication for Underwater Applications

This paper presents   design and implementation of underwater optical communication system . The system consists of transmitter, water channel, and receiver. The laser diode used as a transmitter at 530 – 540  nm wavelength in CW mode with 100 mw power. The channel is about glass pool its dimensions (1m, 0.5m, 0.5m) with different samples of water . The receiver consists of photodiode detector and amplification circuit. This system transmits data from PC to another PC through water channel at different samples. The result shows the difference in the received signal at different tested water samples..

Index Term:  optical communication, laser diode, LED ,  amplification.