Turbulence Controllable Free Space Optical Time Division System based on Supercontinuum

In this paper, an OTDM communication system based on pulse width compression of supercontinuum (SC) is proposed. A dispersion-shifted fiber (DSF) was used to narrow the pulse width and generate a SC with partial coherence property. The coherence length and attenuation of the atmospheric channel is adjustable so that the effect of atmospheric turbulence on FSO could be easily observed. We also compare the scintillation index between the wide-spectral carriers and narrow-spectral carriers of the 1km OTDM FSO link. Verifying the feasibility of wide-spectral FSO communication link through atmospheric turbulence to reduce scintillation index can be achieved.