Reconfiguration applications based on reconfigurable devices present new computational paradigms because, by increasing the reconfiguration frequency of reconfigurable devices, their activity and performance can be improved dramatically. Recently, optically reconfigurable gate arrays (ORGAs) with a holographic memory have been developed to realize rapid reconfigurations and numerous reconfiguration contexts. In addition, optically differential reconfigurable gate arrays (ODRGAs) have been developed to accelerate optical reconfigurations of conventional ORGAs. However, fast configuration experiments under multiple contexts exploiting the ODRGA architecture have never been reported. Therefore, this paper presents a four-context ODRGA system and experimental results that elucidate aspects of fast reconfiguration. The advantage of the ODRGA architecture is discussed based on those results.