All-optical liquid crystal waveguide on silicon

Trotta, Marco and Asquini, Rita and d'Alessandro, Antonio and Beccherelli, Romeo (2011) All-optical liquid crystal waveguide on silicon. Molecular Crystals and Liquid Crystals, 549. pp. 100-105. ISSN 1563-5287

[img] PDF
R40MCLC549p100_2011All_optical_liquid_crystal_waveguide_on_silicon.pdf - Published Version
Restricted to Repository staff only

Download (507kB)


In this paper we demonstrate nonlinear optical properties of a channel waveguide made of E7 nematic liquid crystal infiltrated in a SiO2/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.

Item Type: Article
Subjects: 600 Tecnologia - Scienze applicate > 620 Ingegneria e attivita' affini
Depositing User: Matteo Viola
Date Deposited: 12 Mar 2013 16:24
Last Modified: 21 Mar 2013 17:42

Actions (login required)

View Item View Item