Title :
Liquid crystal based tunable WDM planar Bragg grating devices based on precision sawn groove substrates
Author :
Snow, B.D. ; Gates, J.C. ; Adikan, F.R.M. ; Gawith, C.B.E. ; Dyadyusha, A. ; Major, H.E. ; Kundys, D.O. ; Kaczmarek, M. ; Smith, P.G.R.
Author_Institution :
Optoelectron. Res. Centre, Univ. of Southampton, Southampton, UK
Abstract :
Current optical telecommunication systems employ dense wavelength division multiplexing (WDM) techniques to increase the data carrying capacity of fiber networks. Dynamic add/drop and filtering processes are crucial for the precise control of individual channels on these networks. Reconfigurable integrated optical devices, such as planar Bragg gratings, can tune the reflection wavelength over several standard channel spacings, providing the possibility for all-optical dynamic networks. Electrically tunable planar devices shift the Bragg wavelength by modifying the effective refractive index of a waveguide in a multilayer substrate via LC molecular reorientation.
Keywords :
Bragg gratings; channel spacing; electro-optical devices; integrated optics; liquid crystal devices; optical fibre networks; optical multilayers; optical tuning; refractive index; wavelength division multiplexing; LC molecular reorientation; add-drop process; channel spacing; data carrying capacity; filtering process; integrated optical device; liquid crystal devices; optical fiber network; optical multilayer; optical telecommunication system; planar Bragg grating; refractive index; sawn groove substrate; wavelength division multiplexing techniques; Bragg gratings; Filtering; Liquid crystal devices; Optical fiber devices; Optical fiber filters; Optical fiber networks; Optical filters; Optical refraction; Optical variables control; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5194725
