Measuring Optical Power - Viavi T-BERD MTS 5800 Getting Started Manual

Chapter 7 Optical Tools

Measuring optical power

The T-BERD ⁄ MTS 5800 captures an image, and then analyzes it using the
profile specified. The test result will highlight particles or spots where defects are
present and provide a PASS/FAIL indication.
10 After running a test, you can save a PDF report by selecting Save PDF, and, if
desired, specify the job ticket details such as the company name, technician, loca-
tion, and job number. If the fields are left blank, they will not be included in the
PDF report.
Select the Quit button to exit the test.
Measuring optical power
The Optical Power Meter is a Viavi accessory used to measure optical power.
• The MP-60 meter measures 850, 1300, 1310,1490, and 1550 nm wavelengths
• The MP-80 meter measures 980, 1310,1480, and 1550 nm wavelengths
To measure optical power
1 Connect the Optical Power Meter to a USB connector on the right side of the
instrument.
The USB Power Meter Summary screen appears.
2 Connect the optical patch cord to the power meter.
The measurement appears.
3 To measure a specific wavelength, select the Wavelength.
4 Use the Display Type drop-down box to specify Power Meter Summary or Graph.
NOTE: The graph shows the dB result only (not available for dBm or mW).
5 Use the Display Units drop-down box to specify the measurement mode.
Setting
dBm
mW
dB
SET REF
6 To save results, select the Save Results button.
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Description
Absolute mode, displayed as dBm.The default setting.
Absolute mode, displayed as mW.
Relative measurement mode. The received signal is compared
to the reference value, and displays the difference in dB. NOTE:
If no reference value has been stored, 0.00 dBm will be used as
reference value.
Used in relative measurement mode (dB), to set the reference
value. When selected, the current absolute power level is stored
as new reference value.
T-BERD/MTS/SC Getting Started Guide
22046537, Rev. 016 March 2018