10
TEST PROCEDURES
Checking
Series Optical Power Meters
For Proper Operation
USING OWL LASER OWL SERIES SINGLEMODE SOURCES
WaveTester
LIGHT SOURCE MODEL NUMBERS:
LO2xx
LO2-13xx
LO2-15xx
Checking WaveTester Series Optical Power
Meters for Proper Operation
USING A LASER OWL SINGLEMODE LASER SOURCE
STEP 1
- Connect WaveTester and Laser OWL
Connect the WaveTester and Laser OWL together with a yellow
singlemode patch cable as shown below.
STEP 2 - Power ON the WaveTester
Press
to power on the
WaveTester.
After a few seconds, the
WaveTester display should read
‘LO’, and will appear similar to
the diagram shown at right.
NOTE: the wavelength and measurement units may be different
from the display at right.
STEP 3 - Set the WaveTester to ‘dBm’
Press
on the WaveTester
until the measurement units
read ‘
dBm
’ as shown at right.
You may need to press the
button several times.
NOTE: it is recommended to thoroughly clean and inspect all
patch cord connectors before making any connection.
OF F
ON
UNITS
ZE R O
dBm
lo
850
nm
dBm
lo
850
nm
STEP 4 - Set WaveTester to 1310nm
Press
on the WaveTester
until the wavelength display
shows ‘
1310nm
’ as shown at
right. You may need to press the
button several times.
STEP 5 - Power ON the
Laser OWL
Press
to power on the
Laser OWL.
The 1310nm indicator LED
should now be lit as shown at
right.
STEP 6 - Check optical
power
The power reading displayed on
the WaveTester will probably not
be exactly
-10.00
dBm as shown
at right, but should be fairly
close.
Repeat this procedure for each additional patch cable that needs
testing.
STEP 7 - Replace the patch cable
The easiest way to troubleshoot low power levels is to try another
patch cable. Over time, patch cables can wear out or become
damaged the more they are used for optical loss testing.
Replacing the patch cable usually fixes the problem.
STEP 8 - Clean patch cables and optical ports
If the problem still exists after patch cable replacement, there
may be some debris, such as dust, dirt, or finger oil, that has
collected on the connector endface or in the equipment optical
ports.
Thoroughly clean and inspect the optical ports of the
WaveTester and the Laser OWL, as well as the fiber connector
endfaces, according to the brochures that have been included
with this kit. Several cleaning cycles may be required.
If the power level is still below
-11.00
dBm, even after a thorough
NOTE: the following steps are only required if the optical power
reading on the WaveTester is
-11.00
dBm or below.
AUTO
dBm
lo
i3 0
i
nm
dBm
10.o0
-
i3 0
i
nm
SC connectors shown here;
connector style may vary
LIGHT SOURCE
CONNECTOR PORTS
Do NOT insert APC connector
into either light source port
LASER OWL
connected to
1310nm port
