Piezo Phase Shifter with Tip-Tilt Correction features Sub-Nanometer Resolution

PR Newswire
Tuesday, July 29, 2025 at 12:13pm UTC

Piezo Phase Shifter with Tip-Tilt Correction features Sub-Nanometer Resolution

PR Newswire

AUBURN, Mass., July 29, 2025

Low profile and equipped with a large-aperture, ideal for optics and interferometry, new from PI

AUBURN, Mass., July 29, 2025 /PRNewswire-PRWeb/ -- PI, a global leader in piezo nanopositioning and precision motion control equipment, announces the S-312 piezo phase shifter stage series with five aperture diameters ranging from Ø2" (53mm) to Ø12" (311mm). These U.S.-manufactured piezo stages can be mounted horizontally and vertically and are optimized for optical phase-shifting. Their high-stiffness mechanical design supports sub-nanometer steps with millisecond response times, enabling rapid and repeatable fringe shifting in demanding photonics setups.

Features and Benefits

  •     Piezo Stage for Horizontally or Vertically Mounted Optics
  •     5 Variants with Clear Apertures from 53mm (2") to 311mm (12")
  •     Low Profile, from 28mm for Easy Integration
  •     Tripod Piezo Design Provides Stiff Platform and Z and Z-Tip-Tilt Motion
  •     Open-loop, Analog Voltage Driven for Economical Control
  •     15µm max Displacement at 100V, ~1.5µm at 10V
  •     Custom Versions Available, i.e. Closed-Loop and Different form Factors

Operation
The S-312 family of stages feature three long-life PICMA® piezo actuators, driven by an external analog amplifier in open-loop operation. The actuators can either be driven in parallel (piston motion) or individually for Z/Tip/Tilt operation with a 3-channel piezo amplifier. Displacement of each actuator is proportional to the analog drive voltage, allowing for straightforward integration and control. For example, a 10V input signal delivers roughly 10% of the stage's total displacement range at 100V.

Custom phase shifter configurations are available with closed-loop control using integrated position sensors, along with a variety of form factors to fit unique system requirements. A 0.5-meter cable is standard, offered with both connectorized and pigtail options to maximize configuration flexibility.

Controller
PI's compact E-836 piezo amplifier optimizes the S-312 stages performance as a cost-effective, low-noise module with a gain factor of 10 and an output voltage range from –30 V to +130 V. While delivering stability and responsiveness, this amplifier features short-circuit protection along with full overcurrent and overtemperature safeguards, ensuring reliable, long-term operation even under challenging conditions.

Industries Served
Optics, interferometry, Metrology, Microscopy, Imaging, Photonics, Astronomy

Specifications, Datasheets

PI Americas
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Media Contact

PI Press Releases, PI (Physik Instrumente) LP, (5080 832-3456, press-release@pi-usa.us, https://www.pi-usa.us/

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SOURCE PI (Physik Instrumente) LP