Arrangement for optically coupling an optical waveguide to an optical unit of an optical module and coupling element for such an arrangement

US7594765B2 · kind B2 · utility

Assignee

• Avago Technologies Fiber IP (Singapore) Pte. Ltd. · SG

Inventors

• Hans-Ludwig Althaus · Lappersdorf, DE
• Hans Hurt · Regensburg, DE
• Stephan Prucker · Burglengenfeld, DE
• Tobias Stäber · Regensburg, DE
• Frank Weberpals · Regenstauf, DE
• Josef Wittl · Parsberg, DE

Key dates

• Filing date: Oct 25, 2005
• Grant date: Sep 29, 2009
• Expiry date: Oct 25, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/4292
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Various embodiments of arrangements for optically coupling an optical waveguide to an optical unit of an optical module are provided. One embodiment is an optical module for optically coupling an optical waveguide to an optical unit. One such optical module comprises: a reference structure having a reference geometry that defines a first axis of symmetry; an optical unit having an optical axis along which light is transmitted or received, the optical unit positioned relative to the reference structure with an offset between the first axis of symmetry and the optical axis; and a coupling element that couples the optical unit to an optical waveguide, the coupling element having an eccentric hole which functions as a fiber guide and a structural geometry adapted to compensate for the offset between the first axis of symmetry and the optical axis.