High Resolution / High Bandwidth Piezo Beam Steering Mirror Platforms Provide Larger Angles
PI (Physik Instrumente) L.P. a leading manufacturer of nanopositioning and piezo-based precision motion-control equipment for photonics, astronomy / aerospace and semiconductor applications—provides a number of fast steering mirror tip/tilt platforms driven by solid-state piezo ceramics.
For more information, visit www.tip-tilt-stage.com
Features & Advantages:
- Six Closed Loop & Open Loop Models for Mirrors up to 50 mm Diameter
- Optical Beam Deflection to 120 mrad (>3°)
- Resonant Frequency in the kHz Range for Sub-Millisecond Step Response
- Resolution to 20 nrad — Excellent Position Stability
- Parallel-Kinematics Design for Higher Dynamics, Stability & Linearity
- Closed-Loop Versions for Better Linearity
- Differential Drives for Excellent Temperature Stability
Typical Applications
Beam correction, laser surgery, image stabilization, interlacing, dithering, laser scanning / beam steering, optical communications, high resolution microscopy / spectroscopy
2-Axis, Flexure Guided, No Polarization Rotation
PI's steering mirror platforms provide precise angular tip/tilt motion of the top platform around two orthogonal axes. These flexure-guided, piezoelectrically driven systems can provide higher accelerations than other actuators, enabling step response times in the sub-millisecond range.
The single pivot-point design also prevents the drawback of polarization rotation, which is common with conventional 2-axis stacked systems, e.g. galvo scanners.
3-Axis models with additional piston movement (phase correction) are also available
Parallel-Kinematics: Smaller with Improved Stability, Linearity & Dynamics PI piezo 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. The advantage is jitter-free, multi-axis motion with excellent temperature stability. Compared to stacked (two-stage), mirror scanners, the parallel-kinematics design provides symmetrical dynamic performance in both axes with faster response and better linearity in a smaller package.
Parallel-Kinematics: Smaller with Improved Stability, Linearity & Dynamics
PI piezo 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. The advantage is jitter-free, multi-axis motion with excellent temperature stability. Compared to stacked (two-stage), mirror scanners, the parallel-kinematics design provides symmetrical dynamic performance in both axes with faster response and better linearity in a smaller package.
About PI
PI is a leading manufacturer of precision motion control equipment, piezo systems, piezo motors and actuators for medical engineering, photonics, bio-nano-technology, & semiconductor applications. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drivers for 4 decades. The company has been ISO 9001 certified since 1994 and provides innovative, high quality solutions for OEM and research. PI is present worldwide with eight subsidiaries, R&D / engineering on 3 continents and total staff of 700+.
SOURCE: PI (Physik Instrumente)