Optoelectronic module with high coupling efficiency
AssigneeAvago Technologies Fiber IP (Singapore) Pte. Ltd.
InventorYe Chen
Life of this patent
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Abstract
An optoelectronic module includes a laser, a ball lens, a substrate, a reflector, and a focusing lens. The laser is operable to generates a diverging light beam along an optical axis. The ball lens has a center. The substrate has a surface supporting the laser and an alignment structure. The alignment structure registers the ball lens in a plane parallel to the substrate surface and in a direction normal to the substrate surface so that the center of the ball lens is substantially aligned with the optical axis and the ball lens parallelizes the diverging light beam into a collimated beam. The reflector deflects the collimated beam to produce a deflected collimated beam in a plane intersecting the substrate surface. The focusing lens focuses the deflected collimated beam.
Claims20
An optoelectronic module, comprising:
- a laser operable to generate a diverging light beam along an optical axis;
- a ball lens having a center;
- a substrate having a surface supporting the laser and an alignment structure registering the ball lens in a plane parallel to the substrate surface and in a direction normal to the substrate surface so that the center of the ball lens is substantially aligned with the optical axis and the ball lens parallelizes the diverging light beam into a collimated beam;
- a reflector arranged to deflect the collimated beam to produce a deflected collimated beam in a plane intersecting the substrate surface;
- and
- a focusing lens arranged to focus the deflected collimated beam.
(canceled)
A method of making an optoelectronic module, comprising:
- providing a substrate having a surface supporting the laser and an alignment structure;
- mounting to the substrate a laser operable to generate a diverging light beam along an optical axis;
- attaching a ball lens having a center to the alignment structure, which registers the ball lens in a plane parallel to the substrate surface and in a direction normal to the substrate surface so that the center of the ball lens is substantially aligned with the optical axis and the ball lens parallelizes the diverging light beam into a collimated beam;
- providing a reflector arranged to deflect the collimated beam to produce a deflected collimated beam in a plane intersecting the substrate surface;
- and
- providing a focusing lens arranged to focus the deflected collimated beam.
Dependencies are inferred from the claim text.