Data recording using one-dimensional holography

Data in a one-dimensional object format has been stored and reconstructed in one-dimensional holograms on stationary and moving film. In the case of moving film a cw rather than a pulsed laser is used, with the light modulated only by changes in the object. This simplifies the recording configuration considerably. The possibility of using a random diffuser in front of the object is not obvious but is important in that it shows a page composer object need not be phase coherent. The theoretical background and experimental results, including results using a high-speed ferroelectric page composer, are presented.