Sensor Head Options

PICOSCALE Sensor Heads allow several customizations to account for non-standard measurement tasks or limited installation space. Options include:


Environmental Compatibility


Several sensor heads are available for different environments such as ambient air, ultra-high vacuum, cryogenic or radiation hard.

Beam Splitter Cubes

For C01 sensor heads different beam splitter cubes are available:

  • Standard: The reference mirror is directly coated to the side surface.
  • Front reference: The reference mirror is coated to the front surface so that the measurement beam exits perpendicularly.
  • External reference: Without coating, differential displacement measurements become possible (see picture).

Beam Splitter Orientation

In its standard configuration, the measurement beam exits the sensor head straight. Alternatively, we can provide C01 Sensor Heads with perpendicular orientation of the measurement beam in setups where installation space is limited.

External Reference Mirror

The standard sensor heads can also be built without any reference mirror so that direct differential measurement of two targets are possible. This suppresses the influence of air turbulences by large amounts and thus allows highest accuracy of displacement measurements and lowest noise levels.

Armored Fiber Optic Cables

The sensor heads are connected to the controller by optical glass fibers. In addition to our standard polyamide fibers we offer a robust metal shielding (see picture), PTFE for UHV and radiation resistant PEEK tubing.

The standard fiber lengths are 1.5m and 3.0m. Other lengths on request.

Outer diameter [mm] 0.9 0.9 3.4 1.6
Min. Bending Radius [mm] 20 30 30 60
Environmental Compatibility Ambient, HV Ambient, HV, UHV, Cryo Ambient, HV Ambient, HV, UHV