Piezomechanik GmbH
Piezoactuated Optomechanics
Piezo Mirror-shifters
Piezodriven Translation Stages

Piezo Mirror-shifters
Piezo mirror-shifters are used for ultrafine axial positioning ofmirrors and other optical components without the use ofheavy stages or other external guiding mechanisms.
Piezo mirror-shifters are internally preloaded resulting in highresonance frequencies, outperforming hereby conventionalarrangements like stages etc. with regard to dynamics andstability.
Piezo mirror-shifters are mainly used in coherent optics likeinterferometry or holography eg. phase shift arrangements
for measuring surface topographies with a resolution in thesubmicron range.
Mounting of piezo mirror-shifters is done by• using an adaptorring for fitting to mirror mounts• using the rear side tapped holes• clamping at the circumference.

For attaching mirrors to the shifter, mirror supports or optics
adaptors are used.
The mirror support ST is a flat screw-on cap where themirrors are glued on.
The optics adaptors SA are especially for easy mounting andchanging of 1/2 and 1 mirrors.
The mirror-shifters are driven by standard amplifiers described in the corresponding data sheet. In applications where
not the full travel of the shifter is used, it is reasonable to use
power supplies with lower output voltage. Usually such electronics show higher output currents, which results in a wider
frequency range of the shifters operation.

Piezo Mirror-shifter STr-25
mirrorST (mirror support)
adaptorring
AR 50/25

M 3 on  18

1/2” mirror
SA 1/2”
cable exit
optics adaptor 1/2”
on  18

Technical datamax. operating voltage
Vtravelµm

capacitancenF

resonance frequency
kHz

STr-25/150/6+1150

62500

15

STr-25/500/3+1500

32560

15

STr-25/500/6+1500

62150

15

STr-25/1000/3+1000

32530

15

STr-25/1000/6+1000

62560

15

Max. weight of optics,
when mounted
horizontally:
20 gElectricalconnection:
1 m coaxial cable with BNC-connector
or LEMOSA (see catalog “amplifiers”)
Option:inverse polarity

2

Accessories:

mirror support ST25 (for glueing on themirror)
optics adaptor SA 1/2 for inserting
1/2 optics
adaptorring for mounting the shifters tomirror mounts AR 25/50
other sizes of adaptor rings
on request
The mirror shifter is delivered incl. 1 mirror support ST.

Piezo Mirror-shifter STr-35
ST (mirror support)
mirroradaptorring
AR 50/35

M 4 on  27
1” mirror
SA 1”
optics adaptor 1”

cable exiton  27

Technical data

max. operating voltage
Vtravelµmel. capacitancenF

resonant frequency
kHz

STr-35/150/6+1150

62800

10

STr-35/500/3+1500

32125

15

STr-35/1000/3+1000

32560

15

STr-35/1000/6+1000

62125

15Max. weightof optics,
when mounted
horizontally:
Electricalconnection:
Option:Accessories:40 gmirror support ST 35
optics adaptor SA 1
adaptor ring AR 35/50(other dimensions on request)
The mirror shifter is delivered incl. 1 mirror support ST.

1 m coax cable with BNC-connector
or LEMOSA (see catalog “amplifiers”)
negative polarity3

Translation stage MRL 80.25 P
with magnifying mechanism for piezo travelcompatible with former Klinger/MicroControle optical systemwith NEWPORT/MicroControle optical systemwith Spindler & Hoyer stage TB 80-25

Coarse adjust by micrometer: travel 25 mm
Ultrafine adjust by piezoelements FPSt 150/5/... M12 x0.5
Magnification factor for piezo travel: approx. 1.5
Piezo range:depends on type of actuatore.g. more than 150 µm for
FPSt 150/5/... M12 x0.5
Positioning sensitivityof piezoelement:
approx. 10 nm
xyz arrangements available by use of standard mounting
brackets
Ordering information:

stage MRL 80.25 P and type of piezoactuator FPSt 150/5/... M12 x0.5(... piezo’s elongation)(see page 6)

MicrometerPiezo

M 4 counterbore
M4

Piezo

Micrometer4

Translation stage PMTwith central piezoelement
The translation stage PMT shows a standard coarse adjust
by micrometer for 25 mm travel together with an ultrafinepiezo-positioning capability. The special feature is the implementation of the axially acting piezo to the sliding part of thestage. By the centric mounting of micrometer and piezo, any
torque on the sliding part and rotational deviation during
dynamic piezoaction is avoided.
The PMT stages are equipped with a low voltage actuator,
showing a travel of approx. 40 µm at 150 V.
The PMT stages can be combined to xy and xyz arrangements

Micrometer range:25 mmUltrafine adjust range
by piezoelement:
approx. 40 µm
Positioning sensitivity
by piezo actuator:
10 nm
Driving voltageof piezo element:+150 VElectrical capacitanceof actuator:
1.2 µF
Electrical connection: 1 m coaxial cable / BNC-connector
Ordering code:
PMT 150/40
Stages for operating voltages 500 V/1000 V on request.

All threads M 4
All counterbores Inbus M 4
All dimensions in mm5

Frontmount piezo cartridges FPSt 150/5/... M12 x 0.5
Stack actuators with front mounting thread offer elegant
solutions for implementing piezo drives into optomechanicalarrangements featuring coarse and ultrafine adjust within one
single element.

(See details in catalog “Piezoelectrical and electrostrictive
stack and ring actuators”)
Example: Mirror mount with two degrees of freedom

Schematic drawing of a mirror mount based on piezo cartridges for coarse adjust by mounting screw and ultrafine adjustmentby piezo action.
Piezo cartridges can withstand high forces or loads, whenthese are constant during piezo action.
This applies to a lot of applications, where a spring induced
reset force is applied as in optomechanical arrangements.

To achieve maximum stiffness of the FPSt-mounting
a locknut is used.

Standard configuration:
Casing: stainless steel
Electrical connection: 1 m coaxial cable RG 178 with BNC
connector

Options:
Coaxial cable RG178 with LEMOSA connectors
00250 or 0S250
Positions detection
ThermoStablemax. strokeµmlength L
mm

FPSt 150/5/200 M12 (BD)

27/20025800

FPSt 150/5/300 M12 (BD)40/30034

1200

FPSt 150/5/400 M12 (BD)60/400431600FPSt 150/5/600 M12 (BD)80/600612400FPSt 150/5/800 M12 (BD)105/800

793200FPSt 150/5/100 M12 (BD)130/100

974000FPSt 150/5/120 M12 (BD)

160/1201154800

FPSt 150/5/140 M12 (BD)

190/140

1335600

Piezomechanik · Dr. Lutz Pickelmann GmbH
Berg-am-Laim-Str. 64 · D-81673 Munich · Phone ++ 49/ 89 / 4 3155 83 · Fax ++ 49/89/4 31 6412
e-mail: info@piezomechanik.com · http://www.piezomechanik.com

el. capacitancenF

Stand: Mai 2003

Typ