EXFO IQS-1500 Power Meters for IQS-500/600 - Manual (Page 29)

Setting Up Your Power Meters
Power Meters 21
Selecting the Wavelength
Selecting the Wavelength
When taking accurate measurements, your power meter must be set to
the correct wavelength to compensate for the photodetector responsivity
at the incident wavelength. Ideally, the power meter’s wavelength should
be set as close as possible to that of the optical source being used.
The wavelength must be selected from the wavelength list. To set the
wavelength list, see Managing Wavelength Lists on page 22.
To select the wavelength (either from the Instrument or Settings
function tab):
1. Select the wavelength using the arrow buttons next to the λ list.
2. If you are in the Channels tab of the Settings function tab, click Apply
to confirm your new setting.
Wavelength list