Calibrated light sources - Avantes


Calibrating your spectrometer has never been easier: the AvaLight-HAL-CAL-Mini and Avalight-DH-CAL are NIST traceable calibrated light sources to measure absolute spectral intensity.

The AvaLight-HAL-CAL-Mini is a compact, affordable light source. It is calibrated for the visible range (350-1095 nm). Optionally, an extended calibration for the near-infrared spectral range (1100-2500 nm) can be ordered. It has a built-in diffuser, a cosine corrector with SMA adapter and comes with a calibration file in ASCII format. Calibration can be done using the AvaSoft software.

The AvaLight-HAL-CAL-ISPxx-Mini is a special version of the Avalight-HAL-CAL-Mini, which enables coupling any of Avantes’ AvaSphere-xx-IRRAD integrating spheres to the lightsource (xx=30, 50 or 80) for calibration. This source is supplied with a special bottom plate to stabilize the AvaSphere. The Avalight-HAL-CAL-Mini and Avalight-HAL-CAL-ISPxx-Mini include a power supply.

  • Field calibration
  • Visible and optional NIR range
  • Built-in diffuser
  • Versatile



For radiance calibration in the visible spectral range (360-1100 nm), Avantes offers the AvaSphere-50-LS-HAL-CAL. This radiance calibration sphere is normally used to calibrate a spectrometer and a bare fiber with an SMA connector. This uniform source ensures that the fiber is homogeneously illuminated during calibration.

The AvaSphere-LS-HAL-CAL is supplied with a power supply and a CD-ROM with the calibration file in ASCII-format.


  • Radiance calibration
  • Visible range
  • For homogeneous illuminated areas





  • Flexible calibration
  • Ultraviolet and visible range
  • Built-in diffuser and cosine corrector

Spectral output AvaLight-HAL-CAL and AvaLight-DH-CAL

  AvaLight-HAL-CAL-Mini AvaSphere-50-LS-HAL-CAL AvaLight-DH-(BAL-)CAL
Calibration use Irradiance µW cm-2 nm-1 Radiance µW sr-1 cm-2 nm-1 Irradiance µW cm-2 nm-1
Calibrated surface CC-VIS/NIR or AvaSphere Bare fiber CC-UV/VIS or AvaSphere
Wavelength Range 350-1095 nm / 1100-2500 nm* 350-1095 nm / 1100-2500 nm* 200-1099 nm
Calibration Repeatability ± 0.5 % ± 0.5 % ±1.0 %
Calibration Relative Uncertainty to NIST standard ±9.5% (350-1100 nm)
±6.5% (1100-1950 nm)
±9.5% (1950-2500 nm)
±9.5% (350-1100 nm) ±10% (200-240 nm)
±9% (240-350 nm)
±10% (350-400 nm)
±9.5% (400-1100 nm)
Calibration valid for 60 hrs 60 hrs 60 hrs
Warm-up Time Ca. 15 Min. Ca. 15 Min. Ca. 30 Min.
Bulb Output 170 µW cm-2 nm-1 (@800 nm) 100µW sr-1 cm-2 nm-1 (@800 nm) 80 µW cm-2 nm-1 (@215 nm)
5 µW cm-2 nm-1 (@800 nm)
Power requirement 12 V / 2.08 A 24 VDC / 0.3 A 100-240 VAC
Calibrated light sources Avalight-HAL-CAL Mini  





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