Optical sub-module and optical module

Abstract

An optical sub-module includes a base body having a first base surface and a second base surface that are opposite to each other, a plurality of pins each penetrating through the second base surface and the first base surface, a heat sink disposed on the first base surface and having a groove facing the plurality of pins, a temperature regulator disposed in the groove, and a light emitter disposed on the temperature regulator. The temperature regulator includes a first heat exchange surface and a second heat exchange surface that are opposite to each other, the first heat exchange surface is in contact with an inner wall of the groove, and the light emitter is disposed at the second heat exchange surface so as to perform heat transfer with the temperature regulator.

Dependencies are inferred from the claim text.