A reflective optical switch includes a chamber housed within a solid material and a plurality of piezoelectric elements within the chamber. A slug coupled to a liquid metal within the chamber may be coupled to one or more of the piezoelectric elements. Actuating one or more piezoelectric elements causes the slug to move from a first number of wetting pads to a second number of wetting pads. The slug moves from the first number of wetting pads to the second number of wetting pads breaking a liquid metal surface tension between the slug and the first number of wetting pads and couples the slug and the second number of wetting pads. The movement of the slug and the presence of the liquid metal creates a reflective surface routing one or more signals from the first one or more optical waveguides to the second one or more optical waveguides.