Free space optical communication based on supercontinuum laser source

Supercontinuum laser source is an excellent candidate as signal carrier because of its wealth of bandwidth. Free space optical communication system based on supercontinuum laser source was designed and established. The conditions of supercontinuum generation and the out spectrum at different locations of laser beam spot were discussed. The supercontinuum laser source was modulated by electro-optic modulator. And the feasibility of free space optical communication based on supercontinuum laser source which used electro-optic modulator was proved by comparing the input and output of digital square wave signals. Besides, the image signals collection and display were successfully demonstrated. Finally, the original signals were recovered by the shaping amplificaton of receiving end signals, the image signals transmission in the range of 4 m was successfully realized. According to the experiments mentioned above, supercontinuum laser source under the condition of the free space can realize transmission of wireless video signals.