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Coupling efficiency of the tapered coupler

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1 Author(s)
Smith, R.B. ; University of Washington, Department of Electrical Engineering, Seattle, USA

Analytic solutions, in terms of parabolic cylinder functions, are presented for the mode amplitudes and power in a directional coupler having a constant coupling coefficient and propagation constants that vary linearly. The solutions lead to a remarkably simple expression for the coupling efficiency.

Published in:

Electronics Letters  (Volume:11 ,  Issue: 10 )

Date of Publication:

May 15 1975

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