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– Three optical measurement modes: absolute, relative,
and pass/fail.
– 1310/1490/1550 nm selective power measurement
The OLP-3057 features a port to which PON downstream
links (from OLT) can be connected. The signals at wave-
lengths 1490 nm and 1550 nm are filtered and measured
separately. This power meter port is calibrated at the
respective center wavelength.
– Through path
The OLP-3057 features a second port for PON upstream
links (from ONU) at 1310 nm to be connected. Signals
from this port are passed through to the 1490/1550 nm
port and vice versa. Thus the OLP-3057 can be transpar-
ently inserted into the PON network.
– 1310 nm uplink burst power measurements
The OLP-3057 features the measurement of burst type
signals as found in the PON uplink paths at 1310 nm. The
average burst power is displayed independently from the
burst duty cycle (active/idle). This power meter port is cali-
brated at the respective center wavelength.
– Additional broadband mode
The OLP-3057 features non-selective power measure-
ments via the port on the side of the SIM. In this mode the
OLP-3057 FTTx tester behaves like a standard broad-
band power meter, that is, attenuation measurements can
be done as usual with a suitable optical source. The
JDSU OLS-55 Optical Light Sources are ideal for this
application. Both modulated and unmodulated light
signals can be measured. For modulated light signals, the
average power is displayed. The broadband power meter
is calibrated at 850 nm, 1310 nm,1550 nm and 1625 nm.
The modulated signal mode with different fixed frequen-
cies can be used to identify fibers in a fiber bundle, for
example. The "Auto λ" function allows automatic wave-
length detection. A wavelength encoding light source is
needed to support this feature e.g. the JDSU OLS-55
Optical Light Sources.
HST-3000 OLP-3057 Optical Power Meter User's Guide
Chapter 1 Getting Started
About the OLP-3057 Power Meter
3
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