Kotura, Inc.

Frederik Marcel Van Der Vliet

Dazeng Feng

Joan Fong

Wenhua Lin

The multiplexer includes multi-mode waveguides positioned on a base such that a plurality of the waveguides serve as input waveguides and one or more of the waveguides serve as an output waveguide. The waveguides intersect one another such that light signals traveling along a plurality of the input waveguides are combined onto an output waveguide. At least a portion of the input waveguides including a taper configured to taper the width of a light signal traveling along the input waveguide toward the output waveguide.

Multiplexer having improved efficiency

An optical component includes an optical device positioned between isolation channels. The isolation channels are configured to at least partially isolate different regions of the optical component from one another. The optical component also includes at least one light absorbing region positioned so as to intercept light traveling in a direction that would take the light between the optical device and an isolation channel.

Optical component having reduced interference from radiation modes

An optical device includes a ridge waveguide defined by a ridge extending from a slab of a light transmitting medium. The optical device also includes trenches extending into the slab of light transmitting medium on opposing sides of the ridge. At least one of the trenches is associated with a trench displacement that tapers from a first displacement to a second displacement. The trench displacement is the distance between the ridge and the side of a trench closest to the ridge. The optical device also includes at least one electrical contact positioned in at least one of the trenches.

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Pasadena, CA, United States of America

Frederik Marcel Van Der Vliet