EXFO FLS-2200 Broadband Source - Manual (Page 94)

Technical Specifications
86 FLS-2200
This section gives you details about the way the specifications of your
Broadband Source are determined.
All measurements are made at 23 ± 1 °C with a relative humidity of
50 ± 10 %. Wavelength ranges are all according to specifications of the
option under test. All measurements are made at maximum source power
output, except where explicitly stated otherwise. Warmup times for all
testing equipment and source under test are respected.
Element Description Measured with...
Minimum
spectral density
(dBm/nm)
Minimum optical power available per any
1-nm slice in a specified wavelength range.
The spectral density is a parameter of
choice for the calculation of the dynamic
range of a test setup when the Broadband
Source is combined with an OSA.
an OSA with a
1-nm-resolution
bandwidth
Peak spectral
density
(dBm/nm)
Highest power density value measured over
the whole power spectrum.
an OSA with a
1-nm-resolution
bandwidth
3-dB spectral
width (nm)
Measurement of the extent of a power
spectrum corresponding to the wavelength
range where the output power exceeds one
half (3 dB) of the peak spectral density.
an OSA with a
1-nm-resolution
bandwidth
Central
wavelength (nm)
Average of the two wavelengths limiting this
3-dB bandwidth.The location of central
wavelength and the 3-dB bandwidth value
give you a rough image of the shape and
location of the source’s power spectrum.
After identifying the peak power of the
power spectrum, the 3-dB bandwidth is
determined.
an OSA with a
1-nm-resolution
bandwidth