The piezo phase shifter combines sub-nanometer resolution, millisecond response, and a high-stiffness structure ideal for fringe shifting in advanced photonics systems. With five aperture sizes available, this piezo phase shifter addresses a wide range of precision optics needs.
Key Features and Benefits
- Horizontally or vertically mounted piezo stage
- Five clear aperture variants: from 53 mm (2") to 311 mm (12")
- Ultra-low profile, starting at 28 mm for compact integration
- Tripod piezo design supporting Z and Z-tip-tilt motion
- Analog voltage-driven for economical open-loop control
- Displacement range up to 15 μm at 100 V input
- Custom models available including closed-loop variants
How the S-312 Piezo Phase Shifter Works
The S-312 series integrates three long-life PICMA® piezo actuators, controlled through external analog amplifiers. These actuators can be activated simultaneously for pure piston motion or independently for tip-tilt functions using a 3-channel amplifier. Their analog voltage responsiveness ensures smooth, predictable displacement—e.g., a 10 V signal achieves ~1.5 μm movement out of 15 μm total range.
Customization and Integration Options
PI offers custom configurations of the S-312 piezo phase shifter, including closed-loop control via integrated sensors and varied form factors. Standard models include a 0.5-meter cable, with both pigtail and connectorized options to suit unique system requirements.
Compact Controller for Peak Performance
To ensure reliable operation, PI recommends the E-836 piezo amplifier, a compact, low-noise controller with:
- Output range: –30 V to +130 V
- 10× gain factor
- Short-circuit, overcurrent, and thermal protection
This amplifier enhances system responsiveness and long-term stability, even in demanding lab or industrial conditions.
