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Improved coupled-mode equations for dielectric guides

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1 Author(s)
E. Marcatili ; Bell Telephone Labs., Holmdel, New Jersey, USA

An improved version of coupled-mode equations for parallel dielectric waveguides has been derived by using a newly found relationship that connects the propagation constants of the individual guides to the coupling coefficients via an overlap integral that measures the guides' proximity. The four parameters of these new coupled equations are simple functions of essentially one single quantity: the asynchronism of the individual guides properly normalized.

Published in:

IEEE Journal of Quantum Electronics  (Volume:22 ,  Issue: 6 )