Performance Tests
1
Verification Manual
39
34
Set the oscilloscope to
Eye Measure
mode and setup to
measure the
Average Power
(in dBm) and
Extinction Ratio.
35
Check the average optical power is between:
–2.5 dBm to +4 dBm
36
Check the extinction ratio is greater than
8.2 dB
and record
the measured value.
37
If the instrument has dual wavelength option (1310 and
1550 nm ports) for 51 - 2.5 Gb/s, repeat
step 1
through
step 37
for the 1550 nm output and use 1550 nm settings as
appropriate for oscilloscope channel inputs.
OC-48/STM-16 Eye Mask
N O T E
Ensure Vertical Calibration and Extinction Ratio Calibration have been
performed for the oscilloscope channel and vertical sensitivity range to
ensure measurement accuracy. Refer to oscilloscope information/Help if
necessary
Verification.book Page 39 Monday, January 19, 2004 1:40 PM
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