Fizeau Phase Shifter

Our Fizeau Phase Shifter provides a simple and cost-effective method of adding Durango phase measuring capability to any 4-inch Fizeau interferometer.

• Attaches without tools to industry standard 4-inch bayonet — or use four M4 screws
• Uses your interferometer’s existing tilt/tip knobs
• Adds only 48 mm to interferometer length
• Monolithic flexure design provides high stiffness
• Spring loaded bayonet with thumb wheel latching accepts industry standard Fizeau accessories
• Low voltage (0-100 volt, 6.0 µF ± 20%)
• Nominal scale factor is 150 nm per volt (4.7 fringes at +10 V for 633 nm wavelength)
• Works in any orientation:
  • Axis horizontal, max load moment 15 N-m (11 ft-lb)
  • Axis downward, max load 20 kg (44 lb)
  • Axis upward, max load 100 kg (220 lb)
• LEMO-to-LEMO coaxial cable (3-meter).
• Pricing   Drawing

Our Fizeau Phase Shifter may be driven directly (without voltage amplifier) by a National Instruments NI-DAQ device. For long wavelength phase shifting, we offer a 10X voltage amplifier.