Patent ID: 7701988

Claim:
An optical transmit assembly comprising: one or more circuit components that emit heat therefrom; a first substrate upon which the one or more circuit components that emit heat are structurally mounted; a second substrate; a laser and temperature sensor structurally mounted on the substrate, the temperature sensor being structurally coupled between the laser and the substrate; a temperature driver thermally coupled to the second substrate; and a thermal resistance mechanism including a thermally insulating material, the thermal resistance mechanism structurally connecting the first substrate to the second substrate and providing thermal resistance between the first substrate upon which the one or more circuit components are structurally mounted and the combination of the second substrate, the laser and the temperature sensor such that heat that is generated by the one or more circuit components that emit heat therefrom is restricted by the thermal resistant mechanism from being transferred to the laser and temperature sensor, which allows the temperature of the temperature sensor to more closely track the temperatures of the laser since the temperature of the laser and temperature sensor is less susceptible to dynamic temperature fluctuations caused by surrounding circuitry and changes in the laser bias and modulation currents.