Patent ID: 6940723

Claim:
A heat transfer system for use in removing heat from an optical subassembly located in a shell of an optical transceiver module, the optical subassembly including a housing, the heat transfer system comprising: a heat tongue attached to the optical subassembly to include an interior portion located within the housing and an exterior portion located outside of the housing, the heat tongue being capable of absorbing heat from within the housing; a heat spreading device having a body made from a thermally conductive material, the body being sized to be received within and in thermal communication with the shell of the optical transceiver module; a cavity at least partially defined through the body, the cavity being positioned substantially adjacent the heat tongue; and a thermally conductive slug received within the cavity of the body, the slug being positioned within the cavity to absorb heat from the heat tongue and transfer it to the body of the heat spreading device.