Viavi 8100 V2 Series User Manual page 547

Establishing a reference for an ORL measurement
Two steps must be carried out to take a reference for a ORL measurement:
1 Power emitted reference
2 Zero ORL adjustment
Follow the order given above to take the reference. They are not two differ-
ent processes but two steps necessary to establish a reference for an ORL
measurement
NOTE
As ORL is an option, establishing a reference for this measurement is not
automatically available with the OFI module.
ORL Emitted power
1 Link the FOX port to the power meter input port via a jumper.
2 Click on ORL Power Emitted
3 Click on the Go key. The power measurement from the laser signal emitted is
completed.
Once the reference has been taken, the reference screen is updated for the
wavelengths available on the local instrument. It indicates the type of reference
used.
As the Zero measurement as not yet been done, the first line of the table displays
the message Ref ORL : Incomplete.
ORL Zero adjustment
Once the Power Emitted measurement has been carried out, the Zero adjustment can
be performed:
1 Disconnect the jumper from the external power meter and wrap this jumper, still
connected to the FOX port, around the mandrel (6 to 7 times).
2 Click on ORL Zero
3 Push the Go key
User Manual 78000010220 Rev. 024
Chapter 18 OFI Module
FOX Function
511