Optical Image Quality Testing

Optical image quality performance in operational environments can be very difficult to verify in the laboratory with minimal measurement uncertainty. SDL has the know-how, equipment, and experience necessary to measure optical image quality for simple or complex optical systems in relevant environments.


  • Interferometers
    • 4D Phase Cam Twyman Green interferometer
    • Zygo GPX4 Fizeau interferometer
    • Buccini LUPI (laser unequal path interferometer)
  • Flat test optics up to 56cm diameter
  • Collimating optics up to 48cm diameter
  • Thermal vacuum test windows
    • Visible up to 46cm diameter
    • IR up to 46cm diameter



Wide-field Infrared Survey Explorer

The WISE cryogenically-cooled infrared telescope provided a complete stellar infrared map more than 1,000 times more detailed than previous surveys.


Geosynchronous Imaging Fourier Transform Spectrometer

GIFTS was successfully tested and calibrated as an engineering demonstration unit to ground-validate technologies critical to NOAA’s Hyperspectral Environmental Suite for the Geostationary Operational Environmental Satellite (GOES) system.


Tropospheric Emission Spectrometer-Focal Plane Opto-Mechanical Assembly

SDL designed, fabricated, and tested the re-imaging optics and focal plane mechanical support/cryogenic isolation FPOMA for TES, a high-resolution infrared imaging Fourier transform spectrometer.


Sounding of the Atmosphere using Broadband Emission Radiometry

SABER, a 10-channel infrared (1.27 to 16.9 µm) radiometer, is one of four instruments on NASA's TIMED mission, which is dedicated to study the dynamics of the Mesosphere and Lower Thermosphere (MLT) portion of the Earth's atmosphere.