Imec

Universiteit Gent

Huawei Technologies Co., Limited

Jonathan Schrauwen

Dries Van Thourhout

Roeland Baets

Günther Roelkens

Dirk Taillaert

Stijn Scheerlinck

Diederik Vermeulen

Diedrik Vermeulen

Disclosed are optical devices for coupling radiation between an optical waveguide and an external medium. In one embodiment, an optical device is disclosed comprising a semiconductor die comprising an integrated optical waveguide core and an overlying optical waveguide comprising a waveguide taper and a waveguide facet. The overlying optical waveguide at least partially overlies the integrated optical waveguide core, and the waveguide facet is between about 1 &#x3bc;m and 200 &#x3bc;m from an edge of the semiconductor die. In another embodiment, a method is disclosed comprising providing a substrate comprising an integrated semiconductor waveguide and forming on the substrate an overlying waveguide comprising a waveguide taper and a waveguide facet. The overlying waveguide at least partially overlies the integrated semiconductor waveguide. The method further includes cutting the substrate about 1 &#x3bc;m and 200 &#x3bc;m from the waveguide facet.

Coupling methods and systems using a taper

The present invention relates to an integrated photonic device () operatively coupleable with an optical element () in a first coupling direction. The integrated photonic device () comprises an integrated photonic waveguide () and a grating coupler () that is adapted for diffracting light from the waveguide () into a second coupling direction different from the first coupling direction. The integrated photonics device also comprises a refractive element () disposed adjacent the grating coupler () and adapted to refract the light emerging from the grating coupler () in the second coupling direction into the first coupling direction.

Integrated photonics device

A method for trimming an effective refractive index of optical waveguiding structures made for example in a high refractive index contrast material system. By compaction of cladding material in a compaction area next to patterns or ridges that are formed in the core material for realizing an optical waveguiding structure, the effective index of refraction of the optical waveguiding structure can be trimmed. Thus, the operating wavelength of an optical component comprising such an optical waveguiding structure can be trimmed. An optical waveguide structure thus obtained is also disclosed.

Method for effective refractive index trimming of optical waveguiding structures and optical waveguiding structures

Growing community of inventors

Gentbrugge, Belgium

Jonathan Schrauwen