A fibre optical 1 x 2 switch based on Si-micromechanics for singlemode
fibres is presented. For bistable operation, the input fibre is switc
hed and fixed in a V-groove clamp using thermal actuators. The power c
onsumption during switching is 1.5W for several 10ms, the insertion lo
ss achieved so far is 5dB and the cross talk is below -60dB.