Chip on flex optical subassembly
AssigneeFinisar Corporation
InventorsBrent Stapleton, Rajeev Dwivedi, Harold Young Walker, JR., Gary Landry
Life of this patent
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Abstract
One example embodiment includes an optical subassembly (OSA). The OSA includes a flex circuit, an optical port, and an active optical component subassembly. The flex circuit is constructed of at least one electrically-conductive layer and at least one electrical insulator layer. The optical port defines a barrel cavity and is mechanically coupled to the flex circuit at a flex connection. The active optical component subassembly is positioned within the barrel cavity and electrically coupled to the flex circuit.
Claims20
An optical subassembly comprising:
- a flex circuit constructed of at least one electrically-conductive layer and at least one electrical insulator layer;
- an optical port defining a barrel cavity, the optical port mechanically coupled to the flex circuit at a flex connection;
- and
- an active optical component subassembly positioned within the barrel cavity and electrically coupled to the flex circuit.
An optical subassembly comprising:
- an optical port that defines a barrel cavity having two barrel openings positioned on orthogonal sides of the optical port;
- a flex circuit including a first portion that extends along a first of the two orthogonal sides to substantially cover a first of the two barrel openings and a second portion that extends along the second of the two orthogonal sides to substantially cover a second of the two barrel openings;
- a first active optical component subassembly that is electrically coupled to the first portion of the flex circuit such that the first active optical component assembly is positioned within the barrel cavity;
- and
- a second active optical component subassembly that is electrically coupled to the second portion of the flex circuit such that the second active optical component subassembly is positioned within the barrel cavity.
A method of constructing an array of chip on flex optical subassemblies, the method comprising:
- epoxying a top cover, a top metal, a core, a bottom metal, and a bottom cover to create an array of flex circuits;
- attaching a different one of a plurality of heat sink stiffeners to each of the flex circuits in the array of flex circuits;
- electrically coupling a different one of a plurality of active optical component subassemblies to each of the flex circuit in the array of flex circuits;
- and
- mounting a different one of a plurality of optical ports to each of the flex circuits in the array of flex circuits such that each of the plurality of active optical component subassemblies is positioned within a barrel cavity defined by one of the plurality of optical ports.
Dependencies are inferred from the claim text.