Performance of asymmetrical free space optics (FSO) depends on retro-reflector. In this paper,a mathematic model of laser beam reflected by corner cube retro-reflector (CCR) is set up and applied to analyze the effect of atmosphere turbulence on the modulating retro-reflector(MRR) link. Further, channel compensation of CCR reflection characteristics for the received power fluctuation induced by atmospheric turbulence is discussed. Simulation results show that wavelength, angle of incidence, and refractive index of CCR are the key factors influencing performances of the asymmetrical link, and SNR fluctuation is decreased by reflection of CCR.