ORL-85/ORL-85P
43
7 P
OWERMETER
O
PERATION
G
ENERAL
INFORMATION
7
P
OWERMETER
O
PERATION
General information
This chapter describes how to use the ORL-85/ORL-85P as a
power meter. In Powermeter mode up to two wavelengths can
measured simultaneously. Results can be displayed as absolute
level in dBm/Watt, relatively to a reference value in dB or as Pass/
Fail indication based on predefined limits.
More information about measuring loss with two instruments
set to source and powermeter mode can be found in the chapter
“Measuring Loss with Source/Powermeter” on page 56.
Setting and selecting wavelengths
The ORL-85/ORL-85P provides several ways to select a
wavelength:
• Auto
λ
mode: When using an Auto
λ
capable laser source (like
the OLS-85), wavelengths can automatically be detect.
• By tapping the wavelength displayed in the measurement
display until the desired wavelength is shown. The wavelengths
offered in the table can be defined in the
[
Edit
λ
Table
]
menu.
• By selecting a wavelength from the
λ
table in the menu. The
wavelengths listed in this table are not affected by the
Show
settings in the
[
Edit
λ
Table
]
menu.
Fig. 13
Measurement display (screen shows actual power level (upper),
selected wavelength (lower left) and modulation frequency
(lower right)