Waveguide device

Details Waveguide device Waveguide device

2006-09-12

2006-09-12

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S037000, C385S029000

Reexamination Certificate

active

07106929

ABSTRACT:
Bent waveguide parts131and132on a substrate121of an arrayed waveguide chip104have a core dimension allowing multi-mode operation, but they are adapted to constitute higher order mode filters with adequate combination of the relation of the height and width of waveguides and the minimum radius of curvature. Thus, with the multi-mode as preamble it is possible to cut off higher order mode light propagation by setting a small minimum radius of curvature, thus realizing single-mode light propagation and reducing the optical coupling loss through optical fibers111and112.Thus, it is possible to realize a waveguide chip and a waveguide device with the minimum radius of curvature of bent waveguides and less optical coupling loss in connection parts to optical fibers.

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Hiroshi Nishihara; Masamitsu Haruna; Toshiaki Suhara,Optical Integrated Circuits, Japan, Ohmsha, Ltd., Feb. 25, 1985, pp. 47-49.

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