Optical transmitter
AssigneesSumitomo Electric Industries, Ltd., Sumitomo Electric Device Innovations, Inc.
InventorsSatoshi Yoshimura, Hiroshi Hara, Eiji Tsumura, Masanobu Kawamura
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Abstract
An optical transmitter according to one embodiment includes a housing with an emission end, a light emitting element mounted on a first mounting portion of the housing, and a light receiving element mounted on a second mounting portion of the housing to monitor output light from the light emitting element. The second mounting portion is provided with a carrier, a first resin located on an emission end side of a lower side of the carrier, and a second resin located on a light emitting element side of the lower side of the carrier. A coefficient of thermal expansion of the first resin is smaller than a coefficient of thermal expansion of the second resin.
Claims7
An optical transmitter comprising:
- a housing with an emission end;
- a light emitting element mounted on a first mounting portion of the housing;
- and
- a light receiving element mounted on a second mounting portion of the housing to monitor output light from the light emitting element,
- wherein the second mounting portion is provided with a carrier, a first resin located on an emission end side of a lower side of the carrier, and a second resin located on a light emitting element side of the lower side of the carrier, and
- wherein a coefficient of thermal expansion of the first resin is smaller than a coefficient of thermal expansion of the second resin.
Dependencies are inferred from the claim text.