Products - PI (Physik Instrumente) L.P.
Piezo Phase-Shifters for Optics and Interferometry
The S-312 piezo stages are designed for optical phase-shifting applications, where nanometer-level motion alters the phase of light waves traveling through a lens mounted on the stage. These stages are typically integrated into interferometers but are also suitable for use in a variety of optical circuits. Thanks to their high-stiffness design, they enable sub-nanometer steps with millisecond response times—ideal for rapid fringe shifting.
Operation
S-312 nanopositioning stages utilize three open-loop, long-life PICMA® piezo actuators, driven in parallel via an external analog amplifier. Displacement is proportional to the analog drive voltage—for example, a 10V signal provides approximately 10% of the maximum travel achieved at 100V. Custom phase shifters are available with closed-loop control (integrated position sensors) and in different form factors. The 0.5m cable is offered with both connector and pigtail options to maximize configuration flexibility.
Features and Benefits
- Piezo Z-Stage for Horizontally or Vertically Mounted Optics
- 5 Variants with Clear Apertures from 53mm (2”) to 311mm (12”)
- Low Profile, from 28mm
- Tripod Piezo Design Provides Stiff Platform and Z and Z-Tip-Tilt Motion
- Open-loop, Analog Voltage Driven, 15µm max Displacement at 100V, ~1.5µm at 10V
- Custom Versions Available, i.e. Closed-Loop or Z-Tip-Tilt
Available Sizes / Apertures
S-312 piezo phase shifters are currently available in 5 sizes.
Part Number | Clear Aperture Diameter | Description |
S-312.02 | Ø2" (53mm) | Piezo Stage, Phase Shifter, 15µm, Ø2" (53mm) Clear Aperture |
S-312.04 | Ø4" (108mm) | Piezo Stage, Phase Shifter, 15µm, Ø4" (108mm) Clear Aperture |
S-312.06 | Ø6" (158mm) | Piezo Stage, Phase Shifter, 15µm, Ø6" (158mm) Clear Aperture |
S-312.08 | Ø8" (208mm) | Piezo Stage, Phase Shifter, 15µm, Ø8" (208mm) Clear Aperture |
S-312.12 | Ø12" (311mm) | Piezo Stage, Phase Shifter, 15µm, Ø12" (311mm) Clear Aperture |
*-L | All sizes | For Lemo Connector |
- | All sizes | Pigtail Cable Endings for Direct Control of all 3 Piezo Actuators (Z-Tip-Tilt) |
Accessories and options
- LEMO 1-Pin Electrical connector included for Z-motion (LEMO FFA.00.250.CTAC22)
- Pigtails / no electrical connector for individual actuator control (Z with Tip-Tilt correction configuration)
- Compatible with the E-836 piezo amplifier
- Optional cables include P-890 for pigtail to LEMO connector and P-891 for extension cables
Applications
The stage is ideally suited for interferometer or optical circuit applications where temporary small nanometer steps are needed. Other applications are precision alignment, beam control, microscopy. The solid state piezo and flexure design provides billions of cycles of lifetime and can be configured for both vacuum and clean room applications.
For more information: Download the S-312 Piezo Phase Shifter Datasheet
