Phase Mask Consisting Of An Array Of Multiple Diffractive Elements For Simultaneous Accurate Fabrication Of Large Arrays Of Optical Couplers And Method For Making Same
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Abstract
The present invention entails a phase mask for producing a plurality of volume gratings for use as optical couplers and method for creating the phase mask. The phase mask is produced by creating a plurality of volume gratings having predetermined characteristics which allow the phase mask, when excited by a coherent light wave, to produce a plurality of volume gratings in a recording material.
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8/12/2003
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Patent