Substrate mode hologram for optical interconnects

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 holographi...

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Bibliographic Details
Published in:Optics communications 1998-03, Vol.148 (1), p.18-22
Main Authors: Cheben, Pavel, Calvo, Marı́a L, Belenguer, Tomás, Núñez, Armonı́a
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optical computers, logic elements, interconnects, switches
neural networks
Optical elements, devices, and systems
Optics
Physics
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Summary: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%.
ISSN:0030-4018
1873-0310
DOI:10.1016/S0030-4018(97)00622-6