Test Setup - Agilent Technologies 81630B User Manual

Performance Tests
36
Agilent 81630B/4B/6B/7B Power Sensor Modules and Agilent 81635A Dual Power Sensor Module, Second Edition

Test Setup

1 Make sure that cable connector, detectors and adapters are clean.
2 Make sure that you perform this test in a temperature-controlled
environment with temperature fluctuations less than ±1°C.
3 Setup the equipment as shown in Figure 4. Disable both attenuators
and enable the laser source, where the source wavelength is chosen
to 1550 nm. If you are using the 81657A, move to the wavelength
parameter, [λ], press Enter, select the longer wavelength source
(1550 nm nominally), and press Enter.
4 Set the wavelength of both attenuators to the same wavelength as
the laser source.
5 Perform the following sub-procedure for both Power Meters:
a Move to the Power Meter channel.
b Move to the wavelength parameter, [λ], press Enter, enter the
wavelength of the laser source, and press Enter.
c Move to the calibration parameter, [CAL], press Enter, set the calibration
parameter to zero, and press Enter.
d Move to the averaging time parameter, [AvgTime], press Enter, move to
<100 ms>, and press Enter.
e Move to the power parameter, [P], press [Pwr unit], move to <dBm>, and
press Enter.
f Press the [Menu] softkey and move to <Number of digits>, press Enter,
move to <3>, press Enter and press [Close].
6 Initialize the two attenuators as follows:
a Set the attenuation of the 8156A #221 with Monitor Output (referred to
as Atty1) to 0 dB.
b Set the attenuation of the other 8156A (referred to as Atty2) to 45 dB.
7 Wait at least 15 minutes until the laser source is stabilized.
8 Perform the following sub-procedure for the reference Power Meter,
81634B:
a Press [Menu], move to <Range mode>, move to <Manual>, and press
Enter.
b Move to <Range>, press Enter, move to <-50 dBm>, press Enter, and
press [Close].
9 Perform the following sub-procedure for the DUT, 8163xA/B:
a Press [Menu], move to <Range mode>, move to <Manual>, and press
Enter.
b Move to <Range>, press Enter, move to <10 dBm>, and press Enter.
Performance Test Procedures