Analysis of Light Propagation in an Y-junction of Diffused Ti: LiNbO3 Strip Waveguides and in a Guided-Wave Mach - Zehnder Electroopic Modulator.

Mieczyslaw Szustakowski; Marian Marciniak

doi:10.1117/12.952985

30 January 1990 Analysis of Light Propagation in an Y-junction of Diffused Ti: LiNbO₃ Strip Waveguides and in a Guided-Wave Mach - Zehnder Electroopic Modulator.

Mieczyslaw Szustakowski, Marian Marciniak

Author Affiliations +

Proceedings Volume 1085, Optical Fibres and Their Applications V; (1990) https://doi.org/10.1117/12.952985
Event: Optical Fibers and Their Applications V, 1989, Warsaw, Poland

Abstract

Expressions for refractive index distribution in diffused Y-junction have been obtained. The dependence of the power losses on the Y-junction half angle has been determined and the possibility of reduction of losses by decreasing refractive index in the junction center has been proved. Calculated field distributions oscillate from side to side in the Y-junction and Mach-Zehn-der interferometric modulators monomode branches; taking into account these oscillations allows to avoid excessive losses. Obtained results allow to optimise the Y-junction and modulator's geometric dimensions.

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Mieczyslaw Szustakowski and Marian Marciniak "Analysis of Light Propagation in an Y-junction of Diffused Ti: LiNbO₃ Strip Waveguides and in a Guided-Wave Mach - Zehnder Electroopic Modulator.", Proc. SPIE 1085, Optical Fibres and Their Applications V, (30 January 1990); https://doi.org/10.1117/12.952985

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