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Proceedings Paper

Minimal voltage-length product accessible in channel-diffused waveguide electro-optic modulators in doped ferroelectrics
Author(s): Aleksandra E. Kolosovskaya; C. C. Ziling
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Paper Abstract

The problem of electro-optic interaction between a fundamental mode of channel diffused waveguide fabricated in doped LiNbO3 type ferroelectrics and an electrostatic field of semi-infinite electrodes was investigated. As a result, the optimum relations between the geometric parameters of the waveguide-electrodes system to attain the minimal halfwave voltage-length product (U(pi )l) were obtained. Since the surface index increase (Delta) ns is the main factor setting the limit on the value of U(pi )l in the red and infrared spectrum area, the maximal possible values of (Delta) ns were estimated on the basis of the existing notions about the physical mechanisms controlling the refractive indices in ferroelectrics. It has been found that the most optimistic estimations give the decrease of U(pi )l by 40% in comparison with the best currently achieved level.

Paper Details

Date Published: 21 January 1994
PDF: 6 pages
Proc. SPIE 2051, International Conference on Optical Information Processing, (21 January 1994); doi: 10.1117/12.165985
Show Author Affiliations
Aleksandra E. Kolosovskaya, Institute of Semiconductor Physics (Russia)
C. C. Ziling, Institute of Semiconductor Physics (Russia)


Published in SPIE Proceedings Vol. 2051:
International Conference on Optical Information Processing
Yuri V. Gulyaev; Dennis R. Pape, Editor(s)

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