Optical bench for an opto-electronic device
AssigneeCorning O.T.I., Inc.
InventorsRoberto Galeotti, Mark Andrew Shaw, Giacomo Coppo
Life of this patent
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Abstract
The invention relates to an optical assembly for opto-electronic packages comprising an optical fibre secured on the underside of an elongated support member in optical alignment with an opto-electronic device, wherein said support member is affixed to an aligning member, which in turn is affixed, e.g., by laser welding, to a welding platform. In a preferred embodiment, the elongated support member is a planar parallelepiped. In a further preferred embodiment, the elongated support member is a parallelepiped with an axially extended slot, in which the optical fibre is secured with its longitudinal axis substantially parallel to the axially extended slot.
Claims20
An optical assembly for opto-electronic packages comprising:
- a substrate having an upper surface;
- an optical fibre having a longitudinal axis;
- an opto-electronic device which is mounted on a first portion of the substrate upper surface and which is optically coupled with said optical fibre;
- at least a welding platform placed on a second portion of the substrate upper surface;
- at least an aligning member comprising at least a surface for being affixed to the welding platform and an aligning surface;
- an elongated support member holding the optical fibre in optical coupling with the opto-electronic device, said elongated support member having at least an aligning surface contacting the aligning surface of the aligning member, the two aligning surfaces being shaped so as to allow relative movement of the aligning member and the elongated support member during an alignment phase, said elongated support member being affixed to the aligning member after the aligning phase,
- wherein the optical fibre comprises an ending portion which is secured on the underside of said elongated support member facing the upper surface of the substrate.
A method of optically coupling an optical fibre with an opto-electronic device, wherein said optical fibre has a longitudinal axis and comprises an ending portion, and said opto-electronic device is housed in a package housing provided with a hole in one of its walls, said method comprising the steps of:
- positioning the optical fibre ending portion on a surface of an elongated support member so that the longitudinal axis of the fibre is placed along the direction of elongation of the support member;
- permanently securing the optical fibre on the support member surface;
- turning the support member with the permanently secured fibre so that the fibre is positioned on the underside of the support member;
- feeding the support member axially through the hole in the wall of the package housing, and
- aligning the optical fibre with the opto-electronic device and affixing it to the package in an aligned position.
Dependencies are inferred from the claim text.