In this paper we demonstrate nonlinear optical properties of a channel waveguide made of E7 nematic liquid crystal infiltrated in a SiO(2)/Si V-groove. Light in C-Band (1530-1565 nm), fiber coupled to the core of the liquid crystal waveguide, was optically modulated by the optical beam itself, with a power below 25 mW. A bias voltage was applied to induce a liquid crystal orientation over the Freedericksz threshold and a further director reorientation was obtained by increasing the optical beam. The effect of optical modulation for different applied voltages obtained experimentally was modelled including both opto and electro-optical effects.

All-Optical Liquid Crystal Waveguide on Silicon / Marco, Trotta; Asquini, Rita; D'Alessandro, Antonio; R., Beccherelli. - In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS. - ISSN 1542-1406. - 549:1(2011), pp. 100-105. [10.1080/15421406.2011.581153]

All-Optical Liquid Crystal Waveguide on Silicon

ASQUINI, Rita;D'ALESSANDRO, Antonio;
2011

Abstract

In this paper we demonstrate nonlinear optical properties of a channel waveguide made of E7 nematic liquid crystal infiltrated in a SiO(2)/Si V-groove. Light in C-Band (1530-1565 nm), fiber coupled to the core of the liquid crystal waveguide, was optically modulated by the optical beam itself, with a power below 25 mW. A bias voltage was applied to induce a liquid crystal orientation over the Freedericksz threshold and a further director reorientation was obtained by increasing the optical beam. The effect of optical modulation for different applied voltages obtained experimentally was modelled including both opto and electro-optical effects.
2011
liquid crystals; nonlinear optics; electro-optic effect; silicon photonics; all-optical waveguides
01 Pubblicazione su rivista::01a Articolo in rivista
All-Optical Liquid Crystal Waveguide on Silicon / Marco, Trotta; Asquini, Rita; D'Alessandro, Antonio; R., Beccherelli. - In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS. - ISSN 1542-1406. - 549:1(2011), pp. 100-105. [10.1080/15421406.2011.581153]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/379421
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