Waveguide-type optical switch

Details Waveguide-type optical switch Waveguide-type optical switch

1991-07-03

1992-06-16

Healy, Brian

Optical waveguides

With optical coupler

Switch

385 40, 385 45, 385132, G02B 610

Patent

active

051230690

ABSTRACT:
Waveguide-type optical switch comprising a substrate, branched first and second waveguide routes provided thereon, and an electrode(s) provided on the substrate for controlling the propagation-constant difference or refractive index difference between the first and second waveguide routes. The interval between the first and second waveguide routes is extended towards the terminal end sides from the branch point side of the waveguide routes. The first and second waveguide routes are provided with a branched part. The first and second waveguide routes are provided with at least one part of the bending portions (II) connected to the branch part, respectively. The local branch angle between the first and second waveguide routes on the side of starting ends of the bending portions (II) is enlarged while the local branch angle between the first and second waveguide routes on the side of terminal ends at the bending portions (II) is reduced.

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