Memorias de investigación
Communications at congresses:
Liquid crystal modulators on photonic integrated circuits
Year:2016
Research Areas
  • Optics, electromagnetism
Information
Abstract
A photonic integrated circuit (PIC) or integrated optical circuit is a device that integrates multiple (at least two) photonic functions, being as such similar to electronic integrated circuits. The connections between components are made of light waveguides; these can be active themselves ?i.e., light paths can be externally controlled? by using electrooptic (EO) materials within or onto the light path. The likelihood of liquid crystals to become EO materials for active waveguides in PICs has been explored. A number of multimode interference coupler (MMI), Mach-Zehnder interferometers (MZI) and rings resonators (RRs) have been simulated, designed and manufactured [1]. PICs have been fabricated on silicon and glass. Waveguides have been arranged in the same wafer having widths 1.5-2 ?m and lengths of active regions of 8-700 ?m. In all cases, waveguides are made of SiO 2 (substrate) and SU8 (film), the cover being SiO 2 , so that an LC structure can be eventually adapted onto the waveguide set. Several LCs materials are being tested, with and without 3D-stabilization by a reactive mesogen. Reorientation of the LC mixture modifies the evanescent field of the guided light, effectively affecting the underneath light path. As a result, the MMI pattern, the MZI transfer function, and the RR resonant wavelength can be externally controlled.
International
No
Congress
Reunión de Jóvenes Investigadores SINFOTON: 2a Feria de Otoño 2016.
970
Place
Madrid
Reviewers
Si
ISBN/ISSN
0000-0000
Start Date
20/10/2016
End Date
20/10/2016
From page
0
To page
0
Liquid crystal modulators on photonic integrated circuits
Participants
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Fotónica Aplicada
  • Departamento: Tecnología Fotónica y Bioingeniería
  • Centro o Instituto I+D+i: Centro de Materiales y Dispositivos Avanzados para Tecnologías de Información y Comunicaciones