Title :
BPM analysis of Y-branch TE-TM mode splitter in LiNbO3 by proton-exchange and Ti-diffusion
Author :
Goto, Nasato ; Yip, G.L.
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
A Y-branch TE-TM mode splitter consisting of a proton-exchanged (PE) and a Ti-indiffused (TI) waveguide on z-cut LiNbO3 is analysed by the beam propagation method (BPM). This device was experimentally verified, and TE-TM mode splitting with an extinction ratio of 20 dB was obtained.
Keywords :
integrated optics; lithium compounds; optical couplers; titanium; LiNbO 3; LiNbO 3:Ti; TE-TM mode splitting; Y-branch TE-TM mode splitter; beam propagation method; extinction ratio; proton-exchange;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19891159
