A lead frame which is disposed in an outer package is composed of three members. The variation of the ratio changes the absorption coefficient of the fiber and can be used to compensate for any non-linearity in response. In addition, the power supply unit is adapted to stop supplying power to a power supply controller, thereby stopping power from being supplied to the heater, when the heater temperature controller provides the interlock control signal to the power supply unit. The synfuel is mixed with at least one reactor byproduct.