Title :
Index profile of proton-exchanged waveguides in lithium niobate using cinnamic acid
Author :
Pun, E.Y.B. ; Loi, K.K. ; Chung, Pil Seung
Author_Institution :
Dept. of Electr. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
fDate :
7/4/1991 12:00:00 AM
Abstract :
Proton-exchanged optical waveguides have been fabricated in z-cut LiNbO3 using cinnamic acid. The index profiles of these waveguides were found to be different from those obtained using other organic acids, and could be modelled accurately by a truncated-parabolic function. The maximum surface index increase is 0.141 and is the largest value reported for proton exchange process using organic acids.
Keywords :
integrated optics; lithium compounds; optical waveguides; optical workshop techniques; refractive index; LiNbO 3; cinnamic acid; index profiles; maximum surface index; optical waveguides; organic acids; proton-exchanged waveguides; truncated-parabolic function; z-cut;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910803
