公开(公告)号：US11901946B2

公开(公告)日：2024-02-13

申请号：US17779673

申请日：2021-06-11

申请人： Sumitomo Electric Industries, Ltd. ,  Sumitomo Electric Device Innovations, Inc.

发明人： Satoshi Yoshimura ,  Hiroshi Hara ,  Eiji Tsumura ,  Masanobu Kawamura

IPC分类号： H04B10/50 ,  H04B10/564 ,  G02B6/42 ,  G02B7/00

CPC分类号： H04B10/501 ,  G02B6/4286 ,  G02B7/008 ,  H04B10/564

摘要： 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.