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Using the Optical Spectrum Analyzer
The Markers Menus
To set markers to measure bandwidth
1
Press the front-panel
Markers
key.
2
Select an active marker.
3
Place the marker on the peak of the signal to be measured by pressing the
PEAK
SEARCH
softkey.
4
Press the
Marker BW....
softkey.
5
Select a pre-defined bandwidth or use the knob, step keys, or numeric entry
pad to enter the active marker bandwidth amplitude for the active marker.
If a peak search is not performed, then pressing the
Marker BW....
softkey finds
the bandwidth around the currently active marker. If the bandwidth markers
cannot be placed at the selected value, an error message, such as “
BW not
found
” will be displayed.
To perform a peak search using a marker
1
Press the front-panel
Markers
key.
2
Select an active marker.
3
Press the
PEAK SEARCH
softkey.
The active marker is placed on the highest point of the active trace. If no
marker is
ON
, Marker #1 will be turned
ON
and placed on the highest point of
the active trace.
To change the center wavelength with a marker
1
Press the front-panel
Markers
key.
2
Place a marker on the trace to be centered.
3
Press the
Marker to CENTER
softkey.
The center wavelength is set to the wavelength value of the active marker.
book.book Page 24 Monday, January 31, 2000 10:34 AM