Abstract: A multiple-channel information translation system includes a Bragg light-sound interaction cell interposed in the path of a spatially coherent input light beam. Carrier generating means generates a plural number greater than two of electrical carriers each having a different RF frequency. The carriers are respectively amplitude modulated by information-bearing input signals to produce a like plural number of amplitude-modulated carrier signals used to drive the Bragg cell. The cell Bragg-diffracts the input beam into a corresponding plural number of primary output light beams respectively amplitude-modulated in accordance with the input signals. The carrier generating means causes the frequencies, or frequencies and relative phase, of the carriers to be such that random, signal-related spurious amplitude modulation of the primary output light beams which might otherwise result from cross-channel interference effects in the cell is suppressed.