Earlier free space optics has received a good deal of notice of each within the military and civilian data society because of its doubtless high capability, fast readying, likelihood and high security from deception and ECM. Big issue is that severe climate will have a damaging impact on the performances, which can end in associate degree inadequate accessibility. On this basis report contains a practicable study for associate degree all-optical freespace link with multiple combining meant for short-range light weight communication (200-500 m). Multiple tests are performed to judge the link style and channel amplitude gain. Laboratory tests were created to analyze accessibility and error performance below the influence of various atmospheric conditions. Sub stratosphere result because of turbulence connected effects are studied thoroughly. The foremost vital a part of the link style clad to be the receiver optics and several other style solutions were explored. The most benefit of alloptical style, compared to commercially offered electro optical fso- systems is that the low price and want no license.

Keywords : multiple tx/rx fso; bit error rate (ber); edfa (erbium Doped Fiber Amplifiers); dtv(digital television).