Setting Up the Instrument in WDM Mode
Optical Spectrum Analyzer
53
Defining Preferences
2.
Select the
WDM Results
tab.
3.
Select which parameters you want to display in the
Results
tab from
the list of available choices:
³
Name
: indicates the name of channel.
³
Center wavelength/frequency
: indicates the spectral
center-of-mass for the peak in that channel.
³
Signal Power
: indicates the signal power for the selected channel
(excludes noise).
³
OSNR
: is the Optical Signal to Noise Ratio, given by Signal power
(according to the current calculation method, in dBm) minus
Noise (according to the current calculation method, in dBm).
³
Noise
: indicates the noise level for the selected channel.
³
BW 3.00 dB
: indicates bandwidth measured by taking the width of
a signal at 50 % linear power of the peak or -3 dB from the peak.
³
BW at x dB
: indicates bandwidth measured by taking the width of
a signal at x dB from the peak.
Summary of Contents for FTB-5240BP
Page 1: ...User Guide Optical Spectrum Analyzer for FTB 500 FTB 5240S 5240BP...
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Page 282: ...Testing DWDM Systems 274 FTB 5240S 5240BP Starting a Measurement Drift Mode DFB Mode...
Page 391: ...Managing Results Optical Spectrum Analyzer 383 Managing EDFA Test Results...
Page 394: ...Managing Results 386 FTB 5240S 5240BP Managing EDFA Test Results...
Page 407: ...Managing Results Optical Spectrum Analyzer 399 Managing Trace Files 2 Press New...
Page 414: ...Managing Results 406 FTB 5240S 5240BP Managing Trace Files...
Page 424: ...A sample Drift txt report is shown below...
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Page 437: ...Troubleshooting Optical Spectrum Analyzer 429 About 2 Press About...
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