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

Jerzy Jasinski; Andrzej W. Domanski

doi:10.1117/12.20485

1 August 1990 Transmission characteristic of the cut-off modulator for TM-like hybrid modes

Jerzy Jasinski, Andrzej W. Domanski

Proceedings Volume 1274, Electro-Optic and Magneto-Optic Materials II; (1990) https://doi.org/10.1117/12.20485
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

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.

Citation Download Citation

Jerzy Jasinski and Andrzej W. Domanski "Transmission characteristic of the cut-off modulator for TM-like hybrid modes", Proc. SPIE 1274, Electro-Optic and Magneto-Optic Materials II, (1 August 1990); https://doi.org/10.1117/12.20485

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