Title :
Ti:LiNbO3 three-waveguide polarisation splitter
Author_Institution :
AT&T Bell Laboratories, Allentown, USA
Abstract :
A Ti: LiNbO3 waveguide device that combines the beam-splitter and polariser functions into a single component is presented. This three-waveguide device is designed to split the TM mode equally to the two outer output ports while guiding the TE mode out of the centre guide. The device is low-loss, provides equal splitting and passively delivers¿20 dB of polarisation extinction. Electro-optical tuning would improve this value.
Keywords :
integrated optics; lithium compounds; optical polarisers; optical waveguide components; 3 dB beam splitters; LiNbO3:Ti; TE mode; TM mode; centre guide; equal splitting; outer output ports; polarisation extinction; polarisation separation; three-waveguide polarisation splitter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870027
