Holographic memory formed by different laser wavelengths in laser combiner system for optically reconfigurable gate array

Liquid crystal composite-based holographic memory possesses a self-forming function induced by light irradiation, facilitating the creation of intricate three-dimensional structures. These features are applicable for recording and reconstructing circuit information in optically reconfigurable gate arrays (ORGAs). Introducing holographic memory to ORGAs paves the way for parallel processing techniques based on a spatial light wiring process. This becomes crucial for fabricating radiation-hardened devices where utmost reliability is imperative. The development of interference exposure optics, employing various laser wavelengths, including a short-wavelength blue laser, is a critical aspect of enhancing the capacity of holographic memory through miniaturizing its internal structure. Consequently, we diligently undertook the construction of an interference exposure optical setup comprising a laser combiner with multiple laser wavelengths, as well as the establishment of a holographic memory system for ORGAs.