Hyperbola–parabola primary mirror in Cassegrain optical antenna to improve transmission efficiency

An optical model with a hyperbola–parabola primary mirror added in the Cassegrain optical antenna, which can effectively improve the transmission efficiency, is proposed in this paper. The optimum parameters of a hyperbola–parabola primary mirror and a secondary mirror for the optical antenna system have been designed and analyzed in detail. The parabola–hyperbola primary structure optical antenna is obtained to improve the transmission efficiency of 10.60% in theory, and the simulation efficiency changed 9.359%. For different deflection angles to the receiving antenna with the emit antenna, the coupling efficiency curve of the optical antenna has been obtained.