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2-11
IM AQ6373-01EN
Functions
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App
Index
2.4 Analysis
Spectrum Width Analysis <<See section 7.1 for the operating procedure>>
You can display the spectrum width and center wavelength using the following four types
of calculation.
• THRESH method
• ENVELOPE method
• RMS method
• PEAK RMS method
<See appendix 2, “Spectrum Width Data Calculation Algorithms” for a description of the
spectrum width analysis algorithms and parameters.>
Notch Width Measurement <<See section 7.2 for the operating procedure>>
With notch width measurement, it is possible to measure pass band width / notch
width from the measured waveform of a filter with V-character type or U-character type
wavelength characteristics.
<For a description of the notch width analysis algorithm and parameters, see appendix 2,
“Data Calculation Algorithms for Spectrum Widths.”>
Device Analysis <<See section 7.3 and 7.4 for the operating procedure>>
Light source parameters can be analyzed from the measured waveform of each light
source (DFB-LD, FP-LD, LED).
DFB-LD SMSR Measurement
The side-mode suppression ratio (SMSR) can be measured from the DFB-LD measured
waveform.
FP-LD and LED TOTAL POWER Measurement
Optical power can be measured by integrating the measured waveform level
measurements.
PMD Measurement <<See section 7.6 for the operating procedure>>
It is possible to measure the polarization mode dispersion (PMD) of a DUT (such as
an optical fiber) by using the instrument in combination with an analyzer, polarization
controller, polarizer, and an amplified spontaneous emission (ASE) light source, high-
output LED light source, or other wideband light source.
OSNR (WDM) Analysis <<See section 7.7 for the operating procedure>>
From the measured waveform of the input optical spectrum, you can measure each
channel’s center wavelength or level, and SNR. The analysis results are displayed in a
data table.
Chromaticity coordinate analysis (COLOR analysis)
<<See section 7.8 for the operating procedure>>
The COLOR analysis function performs a color analysis the active trace waveform using
a color matching function, determines the chromaticity coordinates, and displays a
chromaticity diagram.