Piezo Stack Ultra-Fast Steering Mirror Mount

The PSM Piezo Steering Mirror Mount provides high-speed, sub-microradian resolution, tip, tilt, and Z motion for mirrors, gratings and other optics. Equipped with a direct piezo actuation system without lever arm transmission, the PSM2 is ideally suited for high bandwidth laser beam steering, switching and stabilization, beam scanning, image stabilization, and laser cavity tuning.

Sub-microradian positioning resolution
Ultra-fast tip, tilt, and z motion
Simple, maintenance-free operation
Optional integrated strain-gauge

See All Features

Description	Compatibility	Motorized Axes	Angular Range	Avail.	Price
PSM2Piezo Steering Mirror Mount, 2 mrad x 2 mrad x 16 µm, open-loop	UNIVERSAL	3	±0.115°	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$3,993
PSM2-DPiezo Steering Mirror Mount, 2 mrad x 2 mrad x 16 µm, open-loop, XPS compatible	UNIVERSAL	3	±0.115°	Contact Us	$2,678
PSM2SGPiezo Steering Mirror Mount, 2 mrad x 2 mrad x 16 µm, with strain gauge sensors	UNIVERSAL	3	±0.115°	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$9,266

Compatible Controllers

The PSM2 is compatible with the three-channel open-loop piezo stack amplifier.

The PSM2SG is compatible with the three-channel strain-guage position control piezo stack amplifier.

The PSM2-D and PSM2SG-D are compatible with:

XPS-RLD Motion Controller ( or Axis): Requires an Driver Module..
XPS-D Motion Controller (, , or Axis): Requires an Driver Module

Specifications

Models
Motorized Axes	3	3
Mechanism	Steering Mirror	Steering Mirror
Angular Range	±0.115°	±0.115°
Open Loop Linear Resolution	0.03 nm	0.03 nm
Open Loop Angular Resolution	0.004 µrad	0.004 µrad
Closed Loop Linear Resolution		3 nm
Closed Loop Angular Resolution		0.04 µrad
Capacitance	1.8 µF	1.8 µF
Frequency	5400 Hz	5400 Hz
Axial Stiffness	50 N/μm	50 N/μm
Nonlinearity		0.5% (typical)
Load Capacity	1 N	1 N
Weight	85 g	85 g
Cable Length	1 m	1.2 m

Features

Ultra-Fast Tip, Tilt, and Z Motion

Fast and reliable motion is supplied by three multi-layer, low-voltage piezo stacks in a right triangle configuration. The length of each piezo stack can be controlled individually. Applying a voltage to one stack, results in a tip or tilt. Changing the length of all three stacks simultaneously, results in a linear Z-displacement. The PSM features a high unloaded resonant frequency of 5400 Hz.

Simple and Maintenance-Free

The parallel motion design of the PSM is fully temperature compensated. Changes in the environmental temperature do not affect the tilting angle. They are also maintenance-free and are not subject to wear. The PSM models are internally preloaded, can be mounted in any orientation, and support mirrors up to 50 mm diameter that can be glued directly to the top plate.

Strain-Gauge Versions for Closed-Loop Operation

The closed-loop versions feature high resolution strain-gauge position sensors for highly accurate and repeatable motion which also compensates for actuator creep. The assembly is done as a full Wheatstone bridge and is temperature insensitive. The closed-loop devices can be used in either open or closed-loop control.

Sub-Microradian Positioning Resolution

With positioning resolution as low as 0.004 µrad, the PSM Piezo Stack Steering Mirror is capable of ultra-fine adjustments with resolution only limited by the noise of the control electronics.

Open-Loop Model

The PSM is also available as an open-loop (no position feedback) device. This is ideal for applications where the position is controlled by an external sensor such as a lateral effect diode, quad cell, photodiode, CCD camera, etc.