All kinds of diagnostics being done here on the FLARE beam.
- Overview Flush box
| Components | Beam paths |
|---|---|
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- Beamsplitters
FLARE has a wooden box which contains beamsplitters. On the metal clamp flange is written which thickness the foil has, ranging from 6um till 200+ um. It is wavelength dependent which beamsplitter foil works best, for throughput. There also i a gold coated beamsplitter inside which acts as a mirror and can be used to reflect all light towards the spectrometer.
- Spectrometer calibration routine
| Description | Picture |
|---|---|
| Turn on the Mixing laser |  |
| Turn on the CCD camera and switch it from px to cm-1 |
 |
| Open the CCD camera slit so you can see the mixing laser on the spectrometer, turn it counterclockwise to increase the signal. |  |
| Adjust the Mixing laser to 2 cm-1 by adjusting the grating (be sure X offset is 0) |   |
| Shift the px offset so the center of the peak shifts to 0cm-1 |  |
| Next close the slitknife (clockwise) again so the camera isn't saturated with the mixing laser. |  |
- Optimizing Mixing laser output
To have the best signal on the FLARE spectrometer, the higher the intensity of the mixing laser the better the signal will be. To optimize this power it's possible to flip a mirror so the mixing laser gets deflected to a post in which the flare powermeter can be mounted. (dr. L. van de Meer increased the output power from 160mW to 500mW in March 2025)
