FAST STEERING MIRROR FSM

Piezo Tip Tilt Platform to move or to position a mirror along 2 axes of rotation.

The Double Tip Tilt (DTT35XS) from CEDRAT TECHNOLOGIES (CTEC) is a piezo Tip Tilt Platform to move or to position a mirror along 2 axes of rotation. The purpose is to make either a Point Ahead Mechanism or a Fast Steering or a Beam steering Mirror.

The first DTT35XS prototype was initially developed in 2003 for the CNES space project called PHARAO. The DTT35XS off the shelves version is based on two pairs of APA35XS, Amplified Piezoelectric Actuators APA® displaying 35 µm of stroke each, arranged in cross configuration to allow an angular deflection of +/- 2 mrad around the X and Y axes. In order to achieve the two θx and θy angular deflections, each pair of APA35XS is electrically driven in push pull configuration and controlled in position by the standard CCBu20 controller box.

CTEC have been developing several customized versions of the DTT35XS together with CCBu20 for more than 10 years that are now widely used and embedded in Electro-Optic (EO) space and defence systems. The features of the standard & custom designed versions of the DTT35XS provides the EO customers with a Compact, Dynamic and Precise solution to improve the performances of their embedded vision systems.

To name but a few applications are:

• Micro-scanning, Dithering or Pixel shifting for image resolution enhancement of low cost detectors,

• Optical image or line of sight (LOS) stabilization for anti shaking or anti blurring functions in order to obtain better image quality,

• High precision Pointing ahead for free space optical (FSO) communication systems,

• Fast steering mirror for Atmospheric disturbances compensation of astronomical imaging system (telescope) or high power laser beam system (DEW)

About CEDRAT TECHNOLOGIES (CTEC):

CTEC is a high tech SME, part of ACTIVE STRUCTURE FINANCE, with 40 employees. The firm is based in the French Innovation Valley, close to Grenoble, and is supported by BPI France.

CTEC is specialized in the innovation of smart actuators, smart sensors, mechatronic systems, detection systems and technological training courses. Its compact, dynamic and accurate products for mechatronics systems in challenging environments are recognized and appreciated worldwide by customers operating in varied fields such as aerospace, biomedical sciences, automated manufacturing, optronics and more.