Abstract
Abstract Surface electrodes on an electrooptic waveguide cause waveguided light to react as if it were passing through an electrooptic prism. The basic operational characteristics of such an electrooptic surface prism (or ESP) device is discussed in terms of a simple two dimensional prism model. The analysis is made from the view points of both geometric as well as physical optics. An expression for the maximum number of resolvable spots is derived in terms of the maximum applied voltage, linear electrooptic coefficient, and aperture size assuming diffraction limited operation. It is shown that a single ESP deflector device will produce on the order of 10 spots with ± 500 V maximum applied voltage, 50μm aperture, and a LiNbO3 waveguide while 103 spots can be obtained for a parallel array of 200 such units (i.e., 1 cm aperture) provided that the inherent problems associated with the far field destructive interference can be overcome. Failure to overcome the far field interference problems limits the number...
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