Optical stabilizer using a bistable optical device with a PMN electrostrictor

An optical stabilizer utilizing the higher-order stable state of a Fabry-Perot resonator bistable optical device has been made using a PMN electrostrictor with a high bias voltage. The output power of this device exhibits bistable behavior with high reproducibility and is nearly constant over a wide range of input power. Light intensity fluctuation of the laser source can be reduced to ~1/150 by using this optical stabilizer.