JDS Uniphase OLP-34 Operating Instructions Manual - 4 O
20
OLP-34/-35/-38
JDSU
4 O
PERATION
Enabling Auto-Lambda mode
Auto-λ is a special feature developed by JDSU that
allows you to identify wavelengths automatically. To do
this, the signal is modulated at a certain frequency (by a
light source equipped with Auto-λ, such as a JDSU
OLS-34/-35), which can be detected by a JDSU OLP-3x.
Wavelengths cannot be reliably detected if:
• the receive level is too low,
• wavelength encoding cannot be detected due to
interference
• you are measuring the absolute level of a system that
does not have wavelength encoding that matches
JDSU power sources.
Note:
The Auto-λ function can be disabled in order to
prevent an incorrect wavelength detection while
measuring “In-Service” systems.
To switch Auto-
λ
mode on/off:
Press
[AUTO-
λ
]
.
Auto-
λ
mode is activated. If Auto-
λ
mode is activated
and a laser source supporting Auto-
λ
is connected
,
Auto-
λ
will be displayed.
Display in Auto-
λ
mode
When
Auto-
λ
mode is activated and different
wavelengths are detected, the power levels measured at
these wavelengths are displayed individually. The
display toggles automatically to the next detected
wavelength after a few seconds.
Fig. 5 Display in
Auto
-λ mode showing one detected
wavelength and its power levels.