Preparing Your Optical Spectrum Analyzer for a Test
Optical Spectrum Analyzer
21
Nulling Electrical Offsets
Nulling Electrical Offsets
The offset nulling process provides a zero-power reference measurement,
thus eliminating the effects of electronic offsets and dark current due to
detectors.
Temperature and humidity variations affect the performance of electronic
circuits and optical detectors. For this reason, EXFO recommends
performing a nulling of the electrical offsets whenever environmental
conditions change.
Nulling can be performed for all tests modes. In addition, a nulling is
performed automatically each time you start the OSA application, and at
regular intervals afterwards for WDM test mode.
To perform offset nulling:
1.
From the main window, select the
Acquisition
tab.
2.
Disconnect any incoming signal to obtain an optimal accuracy.
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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