THE DESIGN OF ALL-OPTICAL NOT AND OR GATES BASED ON 2×1 MMI COUPLERS ON AN SOI PLATFORM

Le Trung Thanh

Abstract


In this paper, a general theory for designing optical logic gates based on 2x1 multimode interference (MMI) structures is presented. Designsfor a set of optical logic gates using silicon
on insulator (SOI) channel waveguide structures areproposed and optimised. It is shown that this single structure can be used to implement a variety of optical logic and other functions. These devices are optimised by the three dimensional propagation method (3D-BPM).

Keyword.  optical logic gates, silicon on insulator, optical  devices, multimode interference
couplers.




DOI: https://doi.org/10.15625/0866-708X/48/5/1194 Display counter: Abstract : 43 views. PDF (Tiếng Việt) : 270 views.

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Published by Vietnam Academy of Science and Technology