A method of fabricating a spatial light modulator. The processing device is configured for switching between a first operating state with a continuous or high-frequency intermittent provision of supply energy to the sensor system and a second operating state with a low-frequency intermittent provision of supply energy to the sensor system. The cup piece includes an open first end for receiving an optical fiber end, and a second end includes an aligning protrusion. Flame-fueling liquid is supplied to the reservoir and is communicated up the wick to fuel a flame emanating from the flame-bearing end of the wick.