Substrate mode hologram for optical interconnects
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1998
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Elsevier Science BV
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Abstract
A novel method of substrate mode hologram (SMH) design and fabrication is presented. The coupling between a homogeneous plane wave and an arbitrary free propagating wave is achieved via a total internally reflected (TIR) wave. The input slanted plane grating, recorded in an orthochromatic holographic medium, accomplishes the homogeneous plane wave to TIR wave coupling. The TIR wave is transformed to the free propagating wave by the output aperiodic aplanar inhomogeneous grating recorded in a panchromatic holographic medium. Aberration-free conversion between the incident plane wave and the Gaussian wave is reported for coupling efficiency of 57%.
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© 1998 Elsevier Science B.V.
Congress of the International Commission for Optics (17º. 1996. Taejon, Corea del Sur).
We thank M. Ulibarrena from the National Aerospace Institute for the information about the modified DCG processing technique. The support of this study by the National Aerospace Institute (Spanish Ministry of Defense), and the partial financial support from the CICYT (Spanish Ministry of Education and Science), is acknowledged. M.L. Calvo acknowledges the Rectorate of the Complutense University of Madrid for financial support. Partial results were presented at the ICO-17 Meeting (Taejon, Korea, August 1996).