Twyman-Green interferometer with SWIR wavelength

Twyman-Green-Interferometer von 4D Technology

  • Wavelength: 1.55µm 
  • For telescope optics, large mirrors and optical systems (also in real time) 
  • Vibration-independent dynamic interferometer 
  • Small compact designs  
  • For maximum repeatability and precision 
  • Measurements under 30µsec 

Contact person: Mr. Michael Zerbin

The PhaseCam from 4D Technology is a precise Twyman-Green interferometer with SWIR wavelength that is widely used in science and industry. It is used to measure wavefronts and analyze optical components. It detects even the smallest deviations in the optics and ensures that high quality is maintained. This makes this laser interferometer an indispensable tool for the optics industry and scientific applications.

The PhaseCam impresses with its high-resolution sensor and simple, manual control. It offers strong performance and is equipped with full-featured analysis software. 4D Technology's patented "Dynamic Interferometry®" technology makes it possible to perform wavefront measurements in less than 30 microseconds. This allows the PhaseCam to be used in almost all conditions without the need for vibration isolation.

The user-friendly "4Sight Focus" software offers easy operation and enables the measurement of telescope optics, large mirrors and optical systems. The laser interferometer is particularly suitable for measuring large, focal optics and optical systems, such as concave telescope mirrors and lens systems. It is also ideal for testing afocal components with a small aperture, such as flat mirrors and collimators.

Interferometer wavelength options

In addition, the SWIR wavelength interferometer can also precisely measure adjusting elements such as scanning mirrors. If you want to carry out measurements in a clean room environment, there are special, adapted systems. As standard, this laser interferometer is available in wavelengths of 532 nm and 632.8 nm for the visible range and 1064 nm and 1550 nm for the short-wave infrared range.

For special applications in the MWIR or even in the long-wave infrared range, we also offer wavelengths up to 10.6 µm.

Applications

  • concave mirrors  
  • Fast alignment of complex optical systems 
  • Wavefront transmission errors in focal systems (TWE) 
  • Large primary mirrors
  • Concave secondary mirrors 
  • Segmented mirrors
  • Cryovac and thermal tests 
  • Adaptive optics 
  • Use in cleanrooms (cleanroom version) 
  • Quality control in production 
  • Electronic Speckle Pattern Interferometry 

data sheet

PhaseCam 6100 SWIR Data Sheet

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