Title :
Fabrication and characterization of optical waveguides in potassium lithium niobate (KLN) substrates
Author :
Hu, P.F. ; Chong, T.C. ; Shi, L.P. ; Xu, X.W. ; Li, L. ; Xu, B.X.
Author_Institution :
Data Storage Inst., Nat. Univ. of Singapore, Singapore
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
We discuss the fabrication method of planar waveguides in KLN (K/sub 3/Li/sub 2/Nb/sub 5/O/sub 15/) substrates using ion-exchange process. It is found that only the TM mode can be guided in such waveguides. The waveguides have an exponential decay index profile with depth and surface index increase in the order of a few /spl mu/m and 1/spl rarr/10/sup -2/, respectively. Also the waveguide formed near -z face is deeper than that near +z face.
Keywords :
ion exchange; lithium compounds; optical fabrication; optical planar waveguides; photorefractive materials; potassium compounds; refractive index; K/sub 3/Li/sub 2/Nb/sub 5/O/sub 15/; TM mode; depth index increase; exponential decay index profile; extraordinary refractive index; fabrication method; ion-exchange process; m-line technique; optical planar waveguides; surface index increase; Crystalline materials; Ferroelectric materials; Lithium niobate; Nonlinear optical devices; Nonlinear optics; Optical device fabrication; Optical harmonic generation; Optical waveguides; Planar waveguides; Surface waves;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.817951
