Managing Results
312
FTB-5240S/5240BP
Managing WDM Test Results
³
Signal power calculation
: indicates which calculation method to
apply for signal power value.
Integrated signal power
: The integrated signal power represents
the sum of the power values included between the channel limits
of this channel, minus the estimated noise contribution between
the same boundaries. In some cases, for instance CATV signals,
signals with high-frequency modulation, or signals with an
inherent line width similar or larger than the OSA's resolution
bandwidth, this calculation becomes a better estimation of the
true signal power.
Peak signal power
: The peak signal power represents the
maximum power value inside the channel, but it differs a little
from the peak measurement on the spectrum due to the fact that
the estimated noise is subtracted to get the peak signal power.
Total channel power
: The total channel power represents the sum
of the power values included inside the channel width (including
noise).
³
Noise for OSNR
: indicates which calculation method to use for
OSNR value.
Fixed range IEC based (IEC)
: The IEC method uses the
interpolation of noise measured on both sides of the signal to
estimate the noise level. The position at which the noise is
estimated from the center wavelength is given by the OSNR
distance.
In-Band (InB)
: The In-Band method uses a series of scans having
different polarization states to calculate the noise level under the
peak (In-Band).
In-Band narrow filter (InB nf)
: The In-Band narrow filter method
uses additional processing to provide an accurate OSNR value for
the narrow carved noise. This is because with narrow filters, the
noise level under the peak is not uniform and the OSNR value
depends on the processing width selected.
Содержание FTB-5240BP
Страница 1: ...User Guide Optical Spectrum Analyzer for FTB 500 FTB 5240S 5240BP...
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Страница 54: ...Setting Up the Instrument in WDM Mode 46 FTB 5240S 5240BP Defining Preferences 2 Select the Display tab...
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Страница 120: ...Setting Up the Instrument in Drift Mode 112 FTB 5240S 5240BP Defining Preferences 2 Select the Display tab...
Страница 181: ...Setting Up the Instrument in DFB Mode Optical Spectrum Analyzer 173 Defining Preferences 2 Select the Display tab...
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Страница 225: ...Setting Up the Instrument in EDFA Mode Optical Spectrum Analyzer 217 Defining Preferences 2 Select the Display tab...
Страница 240: ...Setting Up the Instrument in EDFA Mode 232 FTB 5240S 5240BP Setting Up EDFA Analysis Parameters 2 Select the General tab...
Страница 282: ...Testing DWDM Systems 274 FTB 5240S 5240BP Starting a Measurement Drift Mode DFB Mode...
Страница 283: ...Testing DWDM Systems Optical Spectrum Analyzer 275 Starting a Measurement Spectral Transmittance Mode EDFA Mode...
Страница 306: ...Managing Results 298 FTB 5240S 5240BP Managing WDM Test Results 3 Select the Include in calculation option...
Страница 372: ...Managing Results 364 FTB 5240S 5240BP Managing Spectral Transmittance Test Results 2 Press Global Parameters...
Страница 391: ...Managing Results Optical Spectrum Analyzer 383 Managing EDFA Test Results...
Страница 392: ...Managing Results 384 FTB 5240S 5240BP Managing EDFA Test Results 3 Select the Include in calculation option...
Страница 394: ...Managing Results 386 FTB 5240S 5240BP Managing EDFA Test Results...
Страница 407: ...Managing Results Optical Spectrum Analyzer 399 Managing Trace Files 2 Press New...
Страница 414: ...Managing Results 406 FTB 5240S 5240BP Managing Trace Files...
Страница 422: ...Managing Results 414 FTB 5240S 5240BP Generating Reports A sample WDM txt report is shown below...
Страница 423: ...Managing Results Optical Spectrum Analyzer 415 Generating Reports A sample Drift html report is shown below...
Страница 424: ...A sample Drift txt report is shown below...
Страница 425: ...Managing Results Optical Spectrum Analyzer 417 Generating Reports A sample DFB html report is shown below...
Страница 426: ...Managing Results 418 FTB 5240S 5240BP Generating Reports A sample Spectral Transmittance html report is shown below...
Страница 427: ...Managing Results Optical Spectrum Analyzer 419 Generating Reports A sample EDFA html report is shown below...
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Страница 437: ...Troubleshooting Optical Spectrum Analyzer 429 About 2 Press About...
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