PI (Physik Instrumente) recently extended its line of S-330 steering mirror platforms. According to the company’s press release, these new additions will provide larger angles, higher bandwidth and more stability. Six closed- and open-loop models are available for mirrors up to 50 mm. These flexure-guided, piezoelectrically driven systems can provide higher accelerations than other actuators, enabling step response times in the sub-millisecond range.
Applications include beam correction, laser surgery, image stabilization, interlacing, dithering, laser scanning/beam steering, optical communications and high resolution microscopy/spectroscopy.
PI steering mirrors are based on a parallel-kinematics design with coplanar rotational axes and a single moving platform driven by two pairs of differential actuators. They provide symmetrical dynamic performance in both axes with faster responses and better linearity in a smaller package.