Abstract

A theoretical and experimental investigation of an active three-branch multimoded Ti:LiNbO₃ waveguide switch is presented. The theoretical study covers the efficiency of the electrooptic index change in a multimoded waveguide, the mode conversion occurring in a tapered transition and, finally, the power division among the branches of the switch. For the experimental characterization, the optical measurements of a device fabricated in a Z-cut LiNbO₃ crystal are presented and discussed. Several improvements as well as applications are pointed out.

© 1989 Optical Society of America

Optical LiNbO₃ 3-branched waveguide and its application to a 4-port optical switch

K. Mitsunaga, K. Murakami, M. Masuda, and J. Koyama
Appl. Opt. 19(22) 3837-3842 (1980)

Optical waveguide channel branches in Ti-diffused LiNbO₃

W. K. Burns, R. P. Moeller, C. H. Bulmer, and H. Yajima
Appl. Opt. 19(17) 2890-2896 (1980)

Coupling between successive Ti:LiNbO₃ waveguide bends and branches

D. Yap and L. M. Johnson
Appl. Opt. 23(17) 2991-2999 (1984)

Passive planar multibranch optical power divider: some design considerations

M. Belanger, G. L. Yip, and M. Haruna
Appl. Opt. 22(15) 2383-2389 (1983)

Optical branching effect in Ti:LiNbO₃ waveguides: near-field pattern studies

Hubert Jerominek, Claude Delisle, and Real Tremblay
Appl. Opt. 25(5) 732-736 (1986)