Abstract
We report on a communication link demonstration in a 1km simulated atmospheric turbulent channel with a wide-spectral mode-locking fiber laser. Wide-spectral beams are part of the supercontinuum, which is generated from pumping a dispersion-shifted fiber by an active mode-locked fiber laser. In addition, the propagation effects of wide-spectral beams were investigated experimentally in a simulated atmosphere channel. The characteristics of bit error rate and eye pattern before and after turbulence were analyzed, respectively. The experimental results showed that the sensitivity of the whole link reaches -40 dBm. The scintillation index of free-space optical communication between wide-spectral partially coherent and narrow-spectral coherent beams was compared, which indicates that the wide-spectral partially coherent optical communication link is more resistant to atmospheric turbulence. We experimentally verified that the scintillation index of wide-spectral carriers is dependent on coherent degree rather than spectral width.
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