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October 2, 2014
 
 
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Brian West

Modeling of Ion-Exchanged Glass Waveguide Structures


Brian R. West, Pratheepan Madasamy, N. Peyghambarian, and S. Honkanen

published: 2004 | Research publication | Arizona

Glass waveguide devices fabricated by ion exchange have evolved to the point where conventional assumptions of waveguide symmetry and mutual independence are no longer valid. We describe a modeling tool that allows for the presence of an arbitrary, nonhomogeneous electric field distribution during the ion exchange process. An asymmetric waveguide produced by selective field-assisted burial is modeled and discussed. A directional coupler fabricated by field-assisted thermal ion exchange and subsequent field-assisted burial is modeled, and it is shown that a proximity effect exists in which the waveguides exert a mutual influence upon each other during processing.

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revised Dec 15/08

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