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Kinematic Mirror Mounts with Piezoelectric Adjusters


ASM003

For Ø7.0 mm Mirrors

PZ630B

Ø1" Mirror Mount and
Three-Channel Controller Package

KC1-PZ

For Ø1" Mirrors

POLARIS-K2S2P

For Ø2" Mirrors

  • 2- or 3-Adjuster Mounts with Fine Piezo and Coarse Manual Control
  • Supports Ø7.0 mm, Ø1/2", Ø1", or Ø2" Mirrors
  • Compatible with Any Thorlabs Piezo Controller
Related Items


Please Wait
Suggested Piezo Controllersa
MDT693B Three-Axis Benchtop Controller
MDT694B Single-Axis Benchtop Controller
KPZ101 Single-Axis K-Cube Controller
  • The mounts on this page will work with our closed-loop controllers as well, however they do not have a feedback mechanism.

Features

  • Two-Axis or Three-Axis Mirror Mounts with Manual and Piezo Adjusters in Series
  • For Ø7.0 mm, Ø1/2", Ø1", or Ø2" Mirrors
  • SMC, BNC, or SMB Connectors for Piezo Control Voltage
  • Standard Ø7.0 mm Mirror Mount is Ideal for Laser Cavities
  • Standard Ø1" Mirror Mounts is 30 mm Cage Compatible and Available with Bundled Controller
  • Polaris® Kinematic Mirror Mounts with Piezoelectric Adjusters are Designed for Exceptional Thermal and Long-Term Stability
  • Can be Controlled with Any Thorlabs Piezo Controller

The two-axis and three-axis mirror mounts sold on this page contain manual and piezo adjusters in series, enabling coarse and fine adjustment of the tip, tilt, and translation of a mounted mirror.

Standard Three-Axis Kinematic Mirror Mounts with Piezo Adjusters
We manufacture a Ø7.0 mm mirror mount whose compact size is ideal for use in laser cavities, as well as a Ø1" (Ø25 mm) mirror mount with through holes for integration into a 30 mm cage assembly. The bore in the Ø1" mount is available with an optional internal SM1 (1.035"-40) thread, which allows a mirror to be mounted with SM1RR Retaining Rings as opposed to a setscrew. We also offer the Ø1" mirror mounts in bundles with the MDT693B Three-Channel Piezo Controller, which provides electronic control for all three axes.

Polaris Kinematic Mirror Mounts with Piezoelectric Adjusters
The Polaris Kinematic Mirror Mounts with Piezoelectric Adjusters are the ultimate solution for applications requiring stringent, actively monitored, long-term alignment stability. Two-axis mirror mounts that accept Ø1/2", Ø1", or Ø2" mirrors are available. Additionally, three-axis mirror mounts that accept Ø1" mirrors are also offered. These Polaris mounts use either a monolithic flexure arm or a flexure spring and setscrew combination to hold the optic. These designs provide high holding force and pointing stability with minimal optic distortion. Machined from heat-treated stainless steel, Polaris mounts utilize precision-matched adjusters with ball contacts and sapphire seats to provide smooth kinematic adjustment. For more details, see the Polaris Kinematic Mirror Mounts with Piezoelectric Adjusters page.

Motorized Kinematic Mirror Mount with Active Stabilization
Click for Details

Piezo Controller as Part of a Closed-Loop System

Piezo Controller in a Beam Stabilization Setup

Active beam stabilization is often used to compensate for beam drift (unintended beam pointing deviations) in experimental setups. Drift can be caused by insecurely mounted optics, laser source instabilities, and thermal fluctuations within an optomechanical setup. In addition to correcting for setup errors, active stabilization is frequently used in laser cavities to maintain a high output power or used on an optical table to ensure that long measurements will take place under constant illumination conditions. Setups with long beam paths also benefit from active stabilization, since small angular deviations in a long path will lead to significant displacements downstream.

An example of a beam stabilization setup is shown in the schematic to the left. A beamsplitter inserted in the optical path sends a sample of the beam to a quadrant position sensor that monitors the displacement of the beam relative to the detector's center. (For optimal stabilization, the beamsplitter should be as close as possible to the measurement.) The quadrant detector outputs an error signal in X and Y that is proportional to the beam's position. Each error signal is fed into a channel of a piezoelectric controller that steers the beam back to the center of the quadrant sensor.

The setup illustrated here stabilizes the beam to a point in space. In order to stabilize the beam over a beam path, four independent output channels are required (i.e., at least two piezoelectric controllers), as are two mirror mounts with piezo adjusters, two position sensors, and two position sensor controllers. Suggested electronics for a beam stabilization setup are given in the table below.

Suggested Components
Description Item #
Mirror Mount with Piezo Adjusters
(Choose One)
ASM003 Ø7.0 mm Mirror Mount,
KC1-PZ(/M) Mirror Mount,
KC1-T-PZ(/M) Mirror Mount with SM1-Threaded Bore,
POLARIS-K1PZ Polaris® Mirror Mount with 3 Adjusters,
or POLARIS-K05P2POLARIS-K1PZ2, POLARIS-K2S2P
Polaris® Mirror Mount with 2 Adjusters
Piezoelectric Controller MDT693B Three-Channel Benchtop Controller
MDT694B Single-Channel Benchtop Controllersa,
or KPZ101 K-Cube Piezo Controllersa
Quadrant Position Detector PDP90A (320 - 1100 nm),
PDQ80A (400 - 1050 nm),
or PDQ30C (1000 - 1700 nm)
K-Cube Position Sensor Controller KPA101
  • One controller is required per independently controlled axis.
Item #MDT693B
Output Specifications
Number of Channels3
ConnectorsBNC
(One BNC-to-SMC Adapter per Channel Included)
Output Voltage0 - 75 V, 0 - 100 V, or 0 - 150 V
(Selected by Switch on Rear)
Output Voltage Resolution
When Using Knobs
1.1 mV (for 75 V Output Voltage Setting)
1.5 mV (for 100 V Output Voltage Setting)
2.2 mV (for 150 V Output Voltage Setting)
Output Current (Max)60 mA
Output Noisea1.5 mV (RMS)
~9.9 mV (Peak-to-Peak)
Output Impedance (Max)150 Ω, 1.0 nF
Load Impedanceb (Min)2.5 kΩ
Bandwidth (-3 dB)9 kHz (No Load, Small Signal)
8.5 kHz (No Load, 150 Vpp)c
200 Hz (1.4 µF Piezo, 150 Vpp)c
Bandwidth Stability (-3 dB)<0.01% Over 5 Hours
External Control through BNC
Input Voltage0 - 10 V
Input Impedance10 kΩ
Input Gain7.5 V/V ± 5% (for 75 V Output Voltage Setting)
10 V/V ± 5% (for 100 V Output Voltage Setting)
15 V/V ± 5% (for 150 V Output Voltage Setting)
Output Voltage Resolution
When Using BNC
Limited by Noise of External Voltage Source
Scan Trim Gain Adjustment80% to 120% of Sum of Master Scan External Voltage and
Offset from Rotary Adjustment Knob
External Control through Command Line
Physical InterfaceFemale Type B USB 2.0 Connector
Digital-to-Analog Resolution16-Bit, 2.75 mV
Analog-to-Digital Resolution16-Bit, 3.0 mV
Physical Specifications
Display Type7-Segment LED with Four Digits
Display Resolution0.1 V
Enclosure Size12.18" × 4.15" × 8.55"
(309.4 mm × 105.5 mm × 217.1 mm)
Weight3.02 kg (6.65 lbs)
Operating Temperature10 to 40 °C
Power Specifications
Input Voltage100 - 240 VAC
Input Frequency50 - 60 Hz
Input Power (Max)60 VA
Fuse TypeIEC60127-2/3 (250 VA, Slow Blow, Type "T")
Fuse Dimensions5 mm x 20 mm
Fuse Rating600 mA
  • Tested without an external load connected (1 nF output impedance only). Adding a capacitive load, such as a piezo, will decrease the noise because the capacitance will create a low-pass filter with the output resistance.
  • The smallest allowable terminating resistance. Applying lower impedances will cause the short-circuit protection to limit the output voltage. Continued use in this mode will cause circuit degradation and eventual circuit failure.
  • Assume a ramp function is used. The bandwidth depends upon the load and requires a calculation for a more representative number. See Chapter 6 of the manual for details.

ASM003 Kinematic Mirror Mount

SMC Male

SMC Male
Input Voltage: 0 - 75 V

KC1(-T)-PZ Kinematic Mirror Mount

BNC Male

BNC Male
Input Voltage: 0 - 150 V

Polaris Kinematic Mirror Mount

SMB Male

SMB Male
Input Voltage: 0 - 150 V

 

MDT693B Three-Channel Piezo Controller

Piezo Output

BNC Female

BNC Female

Output Voltage: 0 - 150 V
Output Impedance (Max): 150 Ω, 1.0 nF

External Voltage Control

BNC Female

BNC Female

Input Voltage: 0 - 10 V
Input Impedance: 10 kΩ

External Computer Control

Type B USB Female

DB9 Female

Piezo Driver Bandwidth Tutorial

Knowing the rate at which a piezo is capable of changing lengths is essential in many high-speed applications. The bandwidth of a piezo controller and stack can be estimated if the following is known:

  1. The maximum amount of current the controllers can produce. This is 0.5 A for our BPC Series Piezo Controllers, which is the driver used in the examples below.
  2. The load capacitance of the piezo. The higher the capacitance, the slower the system.
  3. The desired signal amplitude (V), which determines the length that the piezo extends.
  4. The absolute maximum bandwidth of the driver, which is independent of the load being driven.

To drive the output capacitor, current is needed to charge it and to discharge it. The change in charge, dV/dt, is called the slew rate. The larger the capacitance, the more current needed:

Piezo Equation 1

For example, if a 100 µm stack with a capacitance of 20 µF is being driven by a BPC Series piezo controller with a maximum current of 0.5 A, the slew rate is given by

Piezo Equation 2

Hence, for an instantaneous voltage change from 0 V to 75 V, it would take 3 ms for the output voltage to reach 75 V.

Note: For these calculations, it is assumed that the absolute maximum bandwidth of the driver is much higher than the bandwidths calculated, and thus, driver bandwidth is not a limiting factor. Also please note that these calculations only apply for open-loop systems. In closed-loop mode, the slow response of the feedback loop puts another limit on the bandwidth.

Sinusoidal Signal

The bandwidth of the system usually refers to the system's response to a sinusoidal signal of a given amplitude. For a piezo element driven by a sinusoidal signal of peak amplitude A, peak-to-peak voltage Vpp, and frequency f, we have:

Piezo Equation 3

A diagram of voltage as a function of time is shown to the right. The maximum slew rate, or voltage change, is reached at t = 2nπ, (n=0, 1, 2,...) at point a in the diagram to the right:

Piezo Equation 4

From the first equation, above:

Piezo Equation 5

Thus,
Piezo Equation 6

For the example above, the maximum full-range (75 V) bandwidth would be

Piezo Equation 7.

For a smaller piezo stack with 10 times lower capacitance, the results would be 10 times better, or about 1060 Hz. Or, if the peak-to-peak signal is reduced to 7.5 V (10% max amplitude) with the 100 µm stack, again, the result would be 10 times better at about 1060 Hz.

Triangle Wave Signal

For a piezo actuator driven by a triangle wave of max voltage Vpeak and minimum voltage of 0, the slew rate is equal to the slope:

Piezo Equation 8.

Or, since f = 1/T:

Equation 9

Square Wave Signal

For a piezo actuator driven by a square wave of maximum voltage Vpeak and minimum voltage 0, the slew rate limits the minimum rise and fall times. In this case, the slew rate is equal to the slope while the signal is rising or falling. If tr is the minimum rise time, then

Equation 11

or

Equation 12.

 

For additional information about piezo theory and operation, see the Piezoelectric Tutorials page.


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Posted Comments:
Poster:
Posted Date:2015-10-30 12:53:25.307
Can we unplug the built-in 3' (91.4 cm) cable with the male BNC connector from the mount, or will it be damaged?
Poster:besembeson
Posted Date:2015-11-04 05:21:58.0
Response from Bweh at Thorlabs USA: No this can't be unplugged. Contact me at techsupport@thorlabs.com if you need a different cable length or have any other desired modifications.
Poster:tpschwab
Posted Date:2013-06-10 17:00:54.437
To Thorlabs, I have a few questions regarding the performance of the PZ631 Controller and KC1-PZ Piezoelectric Kinematic Mount: 1) What is the maximum allowable mass to be placed on the mount? 2) Once a desirable position, for the stage, is found, is it possible to return to this position by setting it as the default orientation?
Poster:cdaly
Posted Date:2013-06-12 16:47:00.0
Response from Chris at Thorlabs: Thank you for using our feedback tool. We do not really have a well defined limit for the load spec of this mount, but we anticipate this can handle at most 1-2 pounds, but this will need to be kept at a very short moment from the mounting face of the KC1-PZ. As for the question on returning to a position, the device is simply driven by a voltage input. If you note the voltages which correspond to the desired position, you can simply apply these voltage again late to return, provided you have no moved the actuator screws.
Poster:jlow
Posted Date:2012-09-26 16:17:00.0
Response from Jeremy at Thorlabs: Thank you very much for your feedback. We will look into the possibility of implementing your suggestion.
Poster:
Posted Date:2012-09-22 00:12:33.0
Would be great to label the 3 adjusters, and the three cables.
Poster:bdada
Posted Date:2012-03-15 13:36:00.0
Response from Buki at Thorlabs: Thank you for your feedback. KC1-PZ piezo mount has BNC connectors while the ASM003 has SMC connectors. Our MDT693 piezo controller has BNC connectors on the rear panel and also includes BNC to SMC adapters for the ASM003 mount. On the other hand, our BPC series piezo controller has an SMC male output, so you would need an adapter, T4292, BNC to SMC female, to be able to use it with the KC1-PZ. For reference, below is a link to our selection of compatible piezo controllers. http://www.thorlabs.com/Navigation.cfm?Guide_ID=2085 We will expand on the compatibility issue on our website. Thank you again for your feedback. Please contact TechSupport@thorlabs.com if you have any questions.
Poster:
Posted Date:2012-03-07 19:08:07.0
There is mention of compatibility with T-cube piezo control, but little guidance on what makes it compatible.
Poster:tor
Posted Date:2011-01-06 23:06:33.0
Response from Tor at Thorlabs to sema: I apologize for the inconvenience. I will send you an updated drawing; we will be including this drawing on the web shortly.
Poster:sema
Posted Date:2011-01-06 14:26:18.0
Dear Inge, please define "within the next couple of weeks". We just bought a KC1-PZ/M, and we can neither find the cable configuration. The CAD drawings (in the package and here on the web) are still rev. E from 96.
Poster:Greg
Posted Date:2010-04-16 14:51:39.0
A response from Greg at Thorlabs to jlarchibald: Thank you for pointing this out! I have corrected the web presentation for it.
Poster:Adam
Posted Date:2010-04-16 14:42:01.0
A response from Adam at Thorlabs to jlarchibald: You are correct, the adjusters are 1/4-80 threaded. We will correct the typo that is on the website.
Poster:jlarchibald
Posted Date:2010-04-16 14:36:14.0
On this webpage: http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=231 theres a part that claims it has 1/4"-20 Adjusters. Im pretty sure theyre 1/4"-80 Adjusters. Its listed correctly in other places. Best, James
Poster:inge
Posted Date:2008-08-12 14:54:08.0
That is a very good point. We will change the drawings within the next couple of weeks.
Poster:inge
Posted Date:2008-08-12 14:53:57.0
That is a very good point. We will change the drawings within the next couple of weeks.
Poster:ghegenbart
Posted Date:2008-08-11 06:44:45.0
Unfortunately the ESDs of the KC1-PZ(/M) and KC1-T-PZ(/M) do not contain any information about which cable belongs to which actuator.

Ø7.0 mm Kinematic Mirror Mount with Piezo Adjusters

Protected Silver at Near-Normal Incident Angle
Click to Enlarge
The shaded region in the graph above denotes the range over which we recommend using our protected silver coating. Click here to download the raw data used to make this plot, as well as data at a 45° AOI.
ASM003 Adjuster Screw Diagram
Click for Details
Schematic of ASM003 Mirror Mount
  • Compatible with Ø7.0 mm Mirrors up to 2.5 mm (0.10") Thick
  • Ø6.0 mm Clear Aperture Through Entire Mount
  • Manual and Piezo Adjusters in Series
    • Manual: ±2° (±35 mrad) Angular Range; ±0.5 mm Linear Travel
    • Piezo: ±1 arcmin (±0.3 mrad) Angular Range; ±3.5 µm Linear Travel
  • Minimum Piezo Angular Adjustment: <1 arcsec (<5 µrad)
  • SMC Connectors Accept Control Voltages up to 75 V
  • Up to 2 kHz Operating Rate
  • Mount Fabricated from Stainless Steel
  • Includes Ø7.0 mm Silver Mirror and Mounting Plate for Flexure Stages

This piezo-driven mirror mount provides an angular resolution of better than 1 arcsec (<5 µrad). Each of the three adjustable axes consists of a manual and piezo adjuster in series. Ø7.0 mm optics up to 2.5 mm (0.10") thick are accommodated, and the Ø6.0 mm bore through the entire mount permits use with transmissive optics. A Ø7.0 mm protected silver mirror (Item # PF03-03-P01) is included; the reflectance of protected silver is shown to the right.

The fine-pitch manual adjusters, actuated with a flat head screwdriver (see diagram at right), provide 250 µm/rev and a full translation range of 1 mm (0.04"), for a full angular range of 4° (70 mrad). The piezoelectric elements embedded in the mount allow an additional 7 µm of translation, thereby providing an additional angular range of 2 arcmin (0.6 mrad). Each piezo adjuster is connected to a built-in 200 mm cable with a male SMC connector, and the maximum control voltage is 75 V. When driven by one of our piezoelectric drivers, the piezo elements can operate at up to 2 kHz, making this mirror mount an ideal laser cavity mirror holder when rapid scanning of a resonator cavity length is required.

The bottom of the ASM003 includes a mounting plate with an alignment key for mechanical compatibility with our family of flexure stages. The mounting plate is secured in place by two M2.5 cap screws that can be removed for custom mounting needs.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
ASM003 Support Documentation
ASM003Ø7.0 mm Mirror Mount, 3 Piezo Adjusters, Protected Silver Mirror Included
$1,524.00
Today

Ø1" (Ø25 mm) Kinematic Mirror Mounts with Piezo Adjusters

Cable and Actuator Layout
Click to Enlarge
Cable Diagram
  • Compatible with Ø1" (Ø25 mm) Mirrors
  • Available with Smooth or SM1-Threaded (1.035"-40) Central Bore
  • Through Holes for Integration with a 30 mm Cage System
  • Manual and Piezo Adjusters in Series
    • Manual: ±5° (±87 mrad) Angular Range; ±3 mm Linear Travel
    • Piezo: ±15 arcsec (±73 µrad) Angular Range; ±4 µm Linear Travel
  • Minimum Piezo Angular Adjustment: 0.06 arcsec (0.3 µrad)
  • BNC Connectors Accept Control Voltages up to 150 V
  • Mount Fabricated from Black Anodized Aluminum
  • Available with Bundled Controller (See Below)

These mirror mounts, based upon our KC1 mirror mounts, provide piezo-driven fine adjustments with a minimum angular resolution of 0.06 arcsec (0.3 µrad). Each of the three adjustable axes consists of a manual and piezo adjuster (Item # AE0505D08F) in series. The smooth bore version [Item # KC1-PZ(/M)] secures the mirror with an 8-32 (M4) setscrew and accepts mirrors at least 0.12" (3 mm) thick, while the SM1-threaded version [Item # KC1-T-PZ(/M)] secures the mirror with two included SM1RR Retaining Rings and accepts mirrors up to 0.20" (5 mm) thick.

The 1/4"-80 manual adjusters provide 7 mrad/rev and a full translation range of 6 mm (0.24"), for a full angular range of 10° (174 mrad). The piezoelectric elements embedded in the mount allow an additional 8 µm of translation, thereby providing an additional angular range of 30 arcsec (146 µrad). Each piezo adjuster is connected to a built-in 3' (91.4 cm) cable with a male BNC connector, and the maximum control voltage is 150 V. The knob assignments are shown in the diagram to the right.

Although SM1-threaded optics and lens tubes can be attached to the KC1-T-PZ, we do not recommend it because increasing the distance between the optic and the pivot points of the mount will amplify the movement of the beam. These mounts are also sold bundled with the MDT693B Three-Channel Piezo Controller, providing all the components needed for open-loop control of the mount (see below for details). 

Based on your currency / country selection, your order will ship from Newton, New Jersey  
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KC1-PZ Support Documentation
KC1-PZØ1" (Ø25 mm) Mirror Mount, 3 Piezo Adjusters, Smooth Bore
$636.00
Today
KC1-T-PZ Support Documentation
KC1-T-PZØ1" (Ø25 mm) Mirror Mount, 3 Piezo Adjusters, SM1 Threaded
$637.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
KC1-PZ/M Support Documentation
KC1-PZ/MØ1" (Ø25 mm) Mirror Mount, 3 Piezo Adjusters, Smooth Bore, Metric
$636.00
Today
KC1-T-PZ/M Support Documentation
KC1-T-PZ/MØ1" (Ø25 mm) Mirror Mount, 3 Piezo Adjusters, SM1 Threaded, Metric
$637.00
Today

Ø1" (Ø25 mm) Kinematic Mirror Mounts with Piezo Adjusters and Bundled Controller

3-Channel Piezo Controller
Click for Details
Front Panel of Controller
  • Includes One KC1-PZ(/M) or KC1-T-PZ(/M) Mirror Mount (Shown Above)
  • Bundled MDT693B Controller Includes:
    • Three Output Channels with BNC Connectors and Output Voltage up to 150 V
    • Controlled Directly by Front Panel or Remotely Through BNC or Command Line
    • Ability to Drive All Channels with One Signal

These bundles provide all the components and cables needed for open-loop control of a three-axis kinematic mirror mount with piezo adjusters. They consist of our MDT693B Three-Channel Piezo Controller, a KC1-PZ(/M) or KC1-T-PZ(/M) mirror mount (see above for details on the mirror mount options), and a region-specific power cord selected at the time of the order.

The MDT693B piezo controller features three precise, low-noise, independently controllable output channels and is capable of supporting the piezo mirror mounts' maximum control voltage of 150 V. The control voltage can be modified using rotary knobs on the front panel and by providing an external signal through BNC or USB 2.0. The driver also includes a Master Scan mode that allows all three axes to be controlled by one signal. For more information, please see the full MDT693B presentation.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
PZ630B Support Documentation
PZ630BKC1-PZ Smooth Bore Mirror Mount and MDT693B Piezo Controller
$2,628.00
Today
PZ631B Support Documentation
PZ631BKC1-T-PZ SM1-Threaded Mirror Mount and MDT693B Piezo Controller
$2,628.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
PZ630B/M Support Documentation
PZ630B/MKC1-PZ/M Smooth Bore Mirror Mount and MDT693B Piezo Controller
$2,628.00
Today
PZ631B/M Support Documentation
PZ631B/MKC1-T-PZ/M SM1-Threaded Mirror Mount and MDT693B Piezo Controller
$2,628.00
Today

Ø1/2", Ø1", and Ø2" Polaris® Kinematic Mirror Mounts with Piezoelectric Adjusters

Key Specificationsa
Optic Size Ø1/2" Ø1" Ø2"
Number of Adjusters 2 2 or 3 2
Optic Thickness (Min) 0.08" (2 mm) 0.14" (3.5 mm)
Mechanical Angular Range ±5° ±5° ±3.4°
Piezoelectric Angular Range >490 µrad >500 µrad >280 µrad
Adjusters Manually Adjustable 100 TPI Screws
with Integrated Piezoelectric Elements
Minimum Step Size 0.5 µrad 0.18 µrad
Piezo Control Voltage 0 to 150 V
Piezo Connectors Male SMB
(SMB-to-BNC Cables Included)
Beam Deviation after
Temperature Cyclingb
<6 µrad <3 µrad <2 µrad
Mounting Two #8 (M4) Counterbores Four #8 (M4)
Counterbores
  • Please see the Specs tab on this page for complete specifications.
  • While the Polaris mount was physically disconnected from its piezo controller (zero bias), the ambient temperature was increased by 15 °C, then allowed to return to room temperature. For more details, please see the Test Data tab on this page.
  • Compatible with Ø1/2", Ø1", or Ø2" Mirrors
  • Manual and Piezo Adjusters in Series (See Key Specifications Table to the Right)
  • SMB Connectors Accept Control Voltages up to 150 V
  • Passivated Stainless Steel Surface Ideal for Vacuum and High-Power Laser Cavity Applications
  • SMB-to-BNC Cables Included
  • Custom Mount Configurations are Available by Contacting Tech Support

The Polaris Kinematic Mirror Mounts with Piezoelectric Adjusters are designed to provide long-term alignment stability in closed-loop systems. They offer exceptional angular resolution of ~0.5 µrad for the Ø1/2" and Ø1" mounts and ~0.18 µrad for the Ø2" mount for a 0.1 V step via piezoelectric adjustment. The Polaris integrated matched adjuster/body design results in greater durability and thermal performance compared to non-Polaris mirror mounts. A flexure spring and setscrew combination provides temperature-independent retention of the optic, unlike nylon-tipped setscrews that are sensitive to temperature fluctuations. The setscrew that adjusts the flexure spring accepts a 1/16" (1.5 mm) hex key for the Ø1/2" mirror mount, or a 5/64" (2 mm) hex key for the Ø1" and Ø2" mirror mounts. We strongly recommend using a torque driver for securing the optic to prevent optical surface distortion and to improve thermal stability.

The mirror mounts come with two or three adjuster lock nuts that can be tightened by holding the adjuster knob while lightly tightening the lock nut by hand or with a 11 mm thin-head (for the Ø1/2" mount) or 12 mm thin-head (for the Ø1" and Ø2" mounts), open-ended hex wrench. Lock nuts only need to be lightly tightened to a torque of approximately 4 to 8 oz-in (0.03 to 0.06 N·m). These lock nuts hold in place the manual adjustment and will not affect the fine piezoelectric adjustment of this mount. Post mounting is provided by #8 (M4) counterbores for right- or left-handed mounting. Select mounts also include Ø2 mm alignment pin holes around the mounting counterbore, allowing for precision alignments when paired with our posts for Polaris mirror mounts.

For more details, see the Polaris Kinematic Mirror Mounts with Piezoelectric Adjusters page.

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POLARIS-K05P2 Support Documentation
POLARIS-K05P2Polaris® Piezoelectric Ø1/2" Mirror Mount, 2 Adjusters with Lock Nuts, Cables Included
$811.00
Lead Time
POLARIS-K1PZ Support Documentation
POLARIS-K1PZPolaris® Piezoelectric Ø1" Mirror Mount, 3 Adjusters with Lock Nuts, Cables Included
$1,074.00
Today
POLARIS-K1PZ2 Support Documentation
POLARIS-K1PZ2Polaris® Piezoelectric Ø1" Mirror Mount, 2 Adjusters with Lock Nuts, Cables Included
$842.00
3-5 Days
POLARIS-K2S2P Support Documentation
POLARIS-K2S2PCustomer Inspired!Polaris® Piezoelectric Ø2" Mirror Mount, 2 Adjusters with Lock Nuts, Cables Included
$1,000.00
Today
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Last Edited: Sep 20, 2013 Author: Dan Daranciang