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Appendix G: Product Verification
OA 5000 Series User Manual
A --- 29
Table 4-3: Attenuation Accuracy at 1550 nm
OA 5002 OA 5012 / OA 5022 /
OA 5032
Attenuation
setting (dB)
Tolerance Limits (dB) Tolerance Limits (dB)
10 ---10.15 to ---9.85 ---10.20 to ---9.80
20 ---20.15 to ---19.85 ---20.20 to ---19.80
30 ---30.15 to ---29.85 ---30.20 to ---29.80
40 ---40.15 to ---39.85 ---40.20 to ---39.80
50 ---50.20 to ---49.80 ---50.20 to ---49.80
Step 1: Disconnect the fibers from the OA 5000, 1550 nm laser, and
long wavelength sensor. Connect the 850 nm laser to the input fiber and
the short wavelength sensor to the output fiber. Connect the fibers
together using an FC/FC adapter. Set the laser to CW (unmodulated)
mode, and set the laser power level (if adjustable) to maximum, but not
more than 2 mW. Turn on the laser.
Step 2: At the power meter, select the short wavelength sensor. Set the
wavelength displays of the OA 5000 and the power meter to the actual
wavelength (not the nominal wavelength) of the laser, within ±1 nm.
Step 3: Set the power meter to W (watts) mode. The reading should be
at least 400 W. Set the power meter to dB relative (dB key) mode, and
set the dB reference (Disp-->Ref). The power meter should read 0.0 dB
±0.1 dB.
Step 4: Disconnect the fibers from the FC/FC adapter, and connect
them to the OA 5000.
Step 5: Set the OA 5000 attenuation to 0 dB, and the DISABLE button
to off (unlit).
Step 6: The power meter reading is the insertion loss of the OA 5000.
Check that the power meter reading is ---4.0 dB or higher (more posi-
tive).
NOTE
During the remaining steps, do not disturb the connections and
fibers.
850 nm (except
OA 5002):
Insertion Loss,
Attenuation
Accuracy, and
Repeatability