56
ORL-85/ORL-85P
9 M
EASURING
L
OSS
WITH
S
OURCE
/P
OWERMETER
G
ENERAL
INFORMATION
9
M
EASURING
L
OSS
WITH
S
OURCE
/
P
OWERMETER
General information
The ORL-85 offers three different measurement modes.
•
Source Mode:
The instrument works as a laser source.
•
Powermeter Mode:
The instrument works as an optical power
meter.
Instead of using the
Loss
test mode which restricts the
measurement to a fiber loop, two ORL-85/ORL-85P instruments
can be used for remote operation. In this
Source/Powermeter
Mode
one instrument (like another ORL-85 or the OLS-85)
works as a laser source, while the other ORL-85/ORL-85P works
as an optical power meter. Source and powermeter are not
locked in this mode.
For information on measurement adjustements on your
powermeter device see “Powermeter Operation” on page 43.
Performing the measurement
1.
Select the Source application on your source device and the
Powermeter application on your powermeter device.
2.
Perform the Referencing on the powermeter device:
a) Decide for one of the Reference methods
(see “Appendix - Referencing Methods” on page 78).
b) Connect both devices accordingly.
c) Switch on the laser on your source device.
d) Press the
[
A
]
key and tap the
[
Store ABS->REF
]
button.
3.
Switch the laser source off.
4.
Connect your fiber system under test as shown in figure [...].
5.
Switch on the laser on your source device.
The loss is displayed on the powermeter device.