A method for producing furan-2,5-dicarboxylic acid is provided which can efficiently and quantitatively producing FDCA under mild conditions, without employing an expensive catalyst and with a reduced energy consumption. The output logic also dequeues the read requests based on a similar programmable schedule, forwards the read requests to the memory, and reads data units from the memory based on the read requests. Configurations herein substantially overcome the shortcomings of conventional SAN security event logging by providing a comprehensive security audit mechanism operable to identify and record user actions. The direction of the output signal is determined by whether the polarization of a particular wavelength channel was rotated by the polarization modulator pixel, or not.