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Proceedings Paper

Transmission characteristic of the cut-off modulator for TM-like hybrid modes
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Paper Abstract

In the paper a Y-cut Ti--diffused lithium niobate planar waveulde is considered. The field propagates in the direction inclined to the optic axis, so instead of pure TE or TM modes hybrid modes occur. As TE-like modes leak into the substrate we deal with TM-like hybrid modes only. By using WKB method we obtain approximate formulae expressing fields both inside the waveguide and in the substrate. We calculate coefficients of coupling between modes of perturbed and unperturbed area. We analyze transmission characteristic of such modulator and discuss effects playing significant role in device effaciericy.

Paper Details

Date Published: 1 August 1990
PDF: 11 pages
Proc. SPIE 1274, Electro-Optic and Magneto-Optic Materials II, (1 August 1990); doi: 10.1117/12.20485
Show Author Affiliations
Jerzy Jasinski, Warsaw Univ. of Technology (Poland)
Andrzej W. Domanski, Warsaw Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 1274:
Electro-Optic and Magneto-Optic Materials II
Hans Dammann, Editor(s)

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