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

Volume

3

fYear

1999

fDate

Aug. 30 1999-Sept. 3 1999

Firstpage

1020

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEOPR.1999.817951

Filename

817951