Filter
Top Products
183
Performance Tests
Performance Test
1. Set the attenuator as follows:
λ as required
CAL to 0.00 dB
ATT to 0.00 dB
2. Connect the equipment as shown in the appropriate Total
Insertion Loss Test Setup 2.
NOTE Use a tape to fix the fibers on the table. Don’t touch the fibers during
the measurement to prevent changes of state of polarization.
3. Zero the power meter channel and make sure that the parameters
are set as follows:
λ as required
CAL to 0.000 dB
T to 500ms
4. Set the power meter to AUTOrange, then enable the laser source
and the attenuator output.
5. On the power meter select display in dB (dB key)
6. Press D
ISP→REF for the power meter.
7. Set the DUT attenuation to 60dB
8. If the powermeter does not show 60.00dB, set [lambda] on the
DUT so that the power meter shows 60.00dB. Tuning the DUT
in 0.1nm steps is sufficient to accomplish this. This is necessary
to eliminate the wavelength dependence of the DUT.
9. Press and hold A
TT until the attenuation resets to 0.000dB.
10. Press D
ISP→REF for the power meter.
11. Increase the DUT attenuation in steps as shown below and note
the power meter reading in the Test Record.