Title :
Novel TE-TM mode splitter on lithium niobate using nickel indiffusion and proton exchange techniques
Author :
Wei, Pei-Kuen ; Wang, W.-S.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei
fDate :
1/6/1994 12:00:00 AM
Abstract :
A new TE-TM mode splitter with an asymmetric Y-junction structure operated by directly focusing randomly polarised light on to a titanium indiffused waveguide which is then directed to an ordinary-polarised nickel indiffusion waveguide and an extraordinary-polarised proton exchange waveguide in lithium niobate is demonstrated. The measured extinction ratio is greater than 20dB for both TE and TM modes
Keywords :
focusing; integrated optics; ion exchange; lithium compounds; optical waveguides; tuning; LiNbO3; Ni indiffusion; TE-TM mode splitter; asymmetric Y-junction structure; directly focusing randomly polarised light; extraordinary-polarised proton exchange waveguide; measured extinction ratio; optical waveguides; planar waveguides; proton exchange;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940065
