Planar-lightwave-type optical device
AssigneeNippon Telegraph and Telephone Corporation
InventorsAi Yanagihara, Kenya Suzuki, Ryoichi Kasahara, Kazunori Seno, Yuko Kawajiri
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Abstract
A problem is to provide a planar lightwave circuit optical device capable of facilitating mounting of connection to a printed circuit board and realizing downsizing of a device chip. A planar lightwave circuit optical device of the present invention is characterized by mounting an electrical connector (FPC connector) by means of soldering on an electrode pad of an electrical wire connected to an electrical drive unit (such as a heater) in a device formed by using a planar lightwave circuit (PLC).
Claims11
A planar lightwave circuit optical device comprising:
- a plurality of electrode pads over a surface of a planar lightwave circuit;
- a solder layer over the electrode pads and in contact with the electrode pads;
- and
- an electrical connector in contact with the solder layer,
- wherein the electrode pads are connected to a plurality of electrical drive units, and
- wherein the electrode pads comprise a first electrode pad group connected to a side surface of the electrical connector and a second electrode pad group connected to a side surface opposite to the side surface,
- each pad of the first electrode pad group is connected to one end of each of odd-numbered ones of the electrical drive units and the other end of each of the odd-numbered ones is connected to one third electrode pad via a common wire, and
- each pad of the second electrode pad group is connected to one end of each of even-numbered ones of the electrical drive units and the other end of each of the even-numbered ones is connected to the third electrode pad via the common wire.
A planar lightwave circuit optical device comprising:
- a plurality of electrode pads over a surface of a planar lightwave circuit;
- a solder layer over the electrode pads and in contact with the electrode pads;
- and
- an electrical connector in contact with the solder layer,
- wherein the electrode pads are connected to a plurality of electrical drive units, and
- wherein the electrode pads include a first electrode pad group connected to a side surface of the electrical connector and a second electrode pad group connected to a side surface opposite to the side surface,
- the electrical drive units are a first electrical drive unit and a second electrical drive unit,
- each first electrode pad of the first electrode pad group is connected to one end of the first electrical drive unit and the other end of the first electrical drive unit is connected to one third electrode pad via a common wire, and
- each second electrode pad of the second electrode pad group is connected to one of end of the second electrical drive unit and the other end of the second electrical drive unit is connected to the third electrode pad via the common wire.
Dependencies are inferred from the claim text.