Synthesis of holographic components for optical data storage and transmission systems allowing for characteristics of semiconductor laser radiation

An analysis is made of the theoretical processes of computer synthesis of Fourier holograms for a holographic permanent memory system, and of focusing and collimating kinoform components for optical communication lines. An allowance is made for the characteristics of radiation of semiconductor lasers. The transfer function is determined for a Fourier hologram in a memory capable of compensating largely for the divergence and astigmatic aberration of radiation emitted by a semiconductor laser. Relationships are derived for calculating the parameters of such a hologram and of a system for reconstructing it, allowing for the influence of the partial coherence of the laser radiation. The transmission function is found and expressions are obtained for calculating the parameters of an asymmetric holgraphic component designed to generate stigmatic collimated and focused beams from semiconductor laser radiation by compensating astigmatic aberrations.