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Performance Verification
ORR24 Instruction Manual
15
10. Without moving the optical attenuator from the position in the previous step,
disconnect the output fiber of the optical attenuator from the inline adapter
with the ORR24 and insert the optical attenuator output into the optical
power meter.
11. Adjust the optical power meter to the calibrated wavelength setting of
1550 nm. Note the absolute power displayed. The 1550 nm conversion gain
in units of V/mW
opt
is
((200
mW) / (measured 1550 power))
×
(1310 nm conversion gain)
12. Record the 1550 nm conversion gain on the test record.
Noise Equivalent Power
Power the ORR24 under test using the digital sampling oscilloscope.
1. Zero the RF power meter.
2. Connect the ORR24 output channel to the RF power meter using a 1 GHz
low-pass filter in series.
3. With the dust cover on the input to the ORR24, the RF power meter should
read less than
[15 pW
opt
ń Hz
Ǹ
1 GHz
Ǹ
(measured conversion gain in VńW
opt
)]
2
50
W
+ 4.5 10
–15
(measured conversion gain in VńW
opt
)
2
+ W
elec
(
NOTE :
V
ńW
opt
+ VńmW
opt
1000)
4. Record the calculated and measured results on the test record.
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