Performing The Insertion Loss Measurement; Setting The Zero Value Of The Power Meter; Carrying Out The Reference; Carrying Out The Side By Side Reference - Viavi 8100 V2 Series User Manual

1 Connect the light source to be tested to the rear connector (see "Connection to
the power meter and the source" page -182).
2 In the
3 Press the
The result will appear in the results page and can be memorized in the table (see
"Table of results" page -185).
4 Press the

Performing the insertion loss measurement

Using light source and power meter, an insertion loss measurement can be performed,
having previously carried out a reference measurement.

Setting the zero value of the power meter

1 Fix the plug over the optical input of the power meter so that no light can reach
the photodiode of the power meter. If the zero adjustment is made without this
plug, an error message may be displayed, as the photodiode will detect too much
light.
2 In the
It is important to set the zero of the power meter before making any mea-
surements where accuracy is required, as the noise from the germanium
photodiode fluctuates over time and with variations in temperature.

Carrying out the reference

Using two T-BERD/MTS-8000 V2/6000(A), with an OTDR module including a laser
source option and a Power meter option, an insertion loss measurement in continuous
wave can be performed.
Two types of reference are available: referencing in side by side mode and referencing
in loopback mode.

Carrying out the side by side reference

This reference can be carried out when both units are connected together meaning they
have to be at the same location.
Chapter 5 Power meter and Source functions of the OTDR Modules
S
menu, choose the units dBm, dB or Watts.
ETUP
S /S
TART TOP
S /S
TART TOP
Results page, press
User Manual
Performing the insertion loss measurement
key to start the measurement
key to stop the measurement.
Zero soft key and validate.
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