Cutting edge aerospace and defense optics need to be tested in field conditions. This may include turbulence, vibration, cryogenic freezing, vacuum conditions, and more. Phasics' patented QWLSI technology is, by design, very compact and not sensitive to vibrations. Adding years of specific development to this, Phasics proposes devices that meet demanding performances in harsh environments.
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In-situ wavefront qualification during TVAC testing
The Phasics SID4 V is the only high-resolution vacuum-compatible wavefront sensor capable of performing wavefront measurements directly inside the vacuum chamber. Combined with an R-Cube illumination module, our wavefront sensors are perfect for in situ qualification of space systems in double or single-pass configuration.
Wavefront qualification during TVAC testing
A similar setup can be achieved by placing the optical test instruments outside of the vacuum chamber.
Measurement examples
Wavefront evolution after pressure drop
Wavefront error measurement in air and high vacuum performed with QWSLI (SID4 vacuum wavefront sensor)
Wavefront evolution during temperature cycles
Wavefront RMS evolution during temperature cycles measured with SID4-HR wavefront sensor
SID4-V qualification during pressure drop
SID4-vaccum wavefront sensitivity evolution during pressure drop
Advantages
Powerful unique technology
- True achromaticity
- Large dynamics
- Multiple wavelength testing
Unique capabilities
- Vacuum compatibility
- Small form factor
- Not sensitive to vibrations
Flexible setups
- Surface and transmission on & off axis
- Easy to integrate
- Broad range from UV to LWIR
