Tunable Silicon-on-Insulator based integrated optical filters with liquid crystal cladding

Author

Hattasan, Nannicha ; De Cort, Wout ; Beeckman, Jeroen ; Neyts, Kristiaan ; Baets, Roel

Author_Institution

Dept. of Inf. Technol., Ghent Univ., Ghent, Belgium

fYear

2009

fDate

4-8 Oct. 2009

Firstpage

189

Lastpage

190

Abstract

We investigate the tunability of Silicon-on-Insulator (SOI) devices with liquid crystal (LC) cladding. The tuning mechanism is based on electro-optic response of the cladding to applied external electric field. The validity of this scheme is established using Mach-Zehnder interferometers (MZI). The parameters affecting the tunability of the devices are explored. Up to 20 nm shift of interference wavelength in MZI with a 150 nm thick SOI waveguide by applying 30 V is demonstrated, the highest tunability range in such designs reported to date.

Keywords

Mach-Zehnder interferometers; electric fields; electro-optical effects; optical filters; silicon-on-insulator; Mach-Zehnder interferometers; electric field; liquid crystal cladding; optical filters; silicon-on-insulator; size 150 nm; voltage 30 V; wavelength 20 nm; Glass; Indium tin oxide; Liquid crystal devices; Liquid crystals; Optical devices; Optical filters; Optical waveguides; Silicon on insulator technology; Tunable circuits and devices; Voltage; Electro-optic devices; Tunable optical filters;

fLanguage

English

Publisher

ieee

Conference_Titel

LEOS Annual Meeting Conference Proceedings, 2009. LEOS '09. IEEE

Conference_Location

Belek-Antalya

ISSN

1092-8081

Print_ISBN

978-1-4244-3680-4

Electronic_ISBN

1092-8081

Type

conf

DOI

10.1109/LEOS.2009.5343308

Filename

5343308