Abstract

An optical branch and switch based on a unique mirror effect were fabricated by varying the amount of Ti diffused in a LiNbO₃ waveguide, and their properties were investigated. In this type of optical branch, the branching ratio of the light intensity could be varied by the electric field as well as by the separating angle and the effective indices of the waveguides. The main features of this optical switch are (1) small and simple electrode form and (2) a separating angle large enough to accommodate a number of switches on a single substrate. The ratio of the optical branch light intensity to that of the main waveguide was varied from 0.10 to 12.4 by applying the electric field from 0 V/μm to 8 V/μm.

© 1978 Optical Society of America

Mirror-type optical switch array

H. Naitoh, S. Noda, K. Muto, and T. Nakayama
Appl. Opt. 17(24) 3975-3978 (1978)

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)

Total internal reflection integrated-optics switch: a theoretical evaluation

Sang K. Sheem
Appl. Opt. 17(22) 3679-3687 (1978)

Theoretical and experimental investigation of an active three-branch Ti:LiNbO₃ optical waveguide switch

Michel Belanger and Gar Lam Yip
Appl. Opt. 28(1) 53-59 (1989)

Rib waveguide switches with MOS electrooptic control for monolithic integrated optics in GaAs-Al_xGa_1−xAs

J. C. Shelton, F. K. Reinhart, and R. A. Logan
Appl. Opt. 17(16) 2548-2555 (1978)