Low loss directional coupling between highly dissimilar optical waveguides for high refractive index integrated photonic circuits

US8787712B2 · kind B2 · utility

Assignee

• SOCPRA SCIENCES ET GENIE S.E.C. · CA

Inventors

• Etienne Grondin · Sherbrooke, CA
• Guillaume Beaudin · Sherbrooke, CA
• Vincent Aimez · Sherbrooke, CA
• Richard Ares · Sherbrooke, CA
• Paul Charette · Barcelona, ES

Key dates

• Filing date: Dec 29, 2011
• Grant date: Jul 22, 2014
• Expiry date: Dec 29, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B2006/12147
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An optocoupler, an optical interconnect and method of manufacture providing same are provided for coupling an optical signal between a high refractive index waveguide of an integrated circuit and a waveguide external to the integrated circuit. The optocoupler includes a thinned high refractive index waveguide having a thickness configured to exhibit an effective refractive index substantially matching a refractive index of the external waveguide.