This article is cited in 5 papers

Fiber and integrated optics

New type of heterogeneous nanophotonic silicon-on-insulator optical waveguides

A. V. Tsarev

Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk

Abstract: A new type of optical waveguides in silicon-on-insulator nanostructures is proposed and studied. Their optical properties are simulated by the beam propagation method and discussed. A new design in the form of heterogeneous waveguide structures is based on the production of additionally heavily doped p⁺-regions on the sides of a multimode stripe waveguide (the silicon core cross section is ~200 nm × 16 μm). Such doping provides the 'single-mode' behaviour of the heterogeneous waveguide due to the decrease in the optical losses for the fundamental mode and increase in losses for higher-order modes. Single-mode heterogeneous waveguides can be used as base waveguides in photonic and integrated optical elements.

PACS: 42.82.Et, 81.07.-b

Received: 05.03.2007

 English version: Quantum Electronics, 2007, 37:8, 775–776

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