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Home > Press > Piezo Beam Steering Mirror Platforms Provide Larger Angles, High Bandwidth & Stability

S-330 piezo sterring mirror platforms shown with a closed-loop OEM piezo controller
S-330 piezo sterring mirror platforms shown with a closed-loop OEM piezo controller

Abstract:
PI (Physik Instrumente) L.P. — a leading manufacturer of nanopositioning and piezo-based precision motion-control equipment for bio-nanotechnology, photonics and semiconductor applications—has extended the S-330 high-dynamics piezo tip/tilt platform family by several new large-angle models.

Piezo Beam Steering Mirror Platforms Provide Larger Angles, High Bandwidth & Stability

Auburn, MA | Posted on December 17th, 2007

Features & Advantages:

- Six Closed Loop & Open Loop Models for Mirrors up to 50 mm Diameter

- Optical Beam Deflection to 20 mrad (>1°)

- > 3kHz Resonant Frequency 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

S-330 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.

Closed-loop and open-loop versions with 3 different tilt ranges up to 10 mrad (20 mrad optical deflection) are 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.

####

About PI (Physik Instrumente) L.P.
PI is a leading manufacturer of ultra-precision motion-control equipment for photonics, nanotechnology, semiconductor and life science applications. PI has been developing and manufacturing standard & custom precision products with piezoelectric and electromagnetic drives for 35+ years. 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 and total staff of 450+.

For more information, please click here

Contacts:
Stefan Vorndran
Dir. Corp. Product Marketing & Communications
-----------------------------
PI (Physik Instrumente) L.P.
16 Albert St.
Auburn, MA 01501
email:
Tel: 508-832-3456,
Fax: 508-832-0506
http://www.pi.ws
http://www.pi-usa.us

Copyright © PI (Physik Instrumente) L.P.

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