Keysight Technologies 8163A, Руководство пользователя

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60 8163A/B, 8164A/B, 8166A/B User’s Guide
1 Getting Started
7 For the Power Sensor module, make sure that Watts are the selected
Power Unit and that the instrument is in automatic ranging mode. To
change these settings:
a Move to the power parameter, [ P ], and press the
[Power Unit] softkey.
b Move to < W >, using the cursor key, and press Enter .
c Move to the [ Range Mode ] parameter and press Enter .
d Move to < Auto >, using the cursor key, and press Enter .
8 How to set the wavelength for the Tunable Laser module:
a Move to the wavelength parameter, [
λ
], for the Tunable Laser
module and press Enter .
b Enter 1540.000 and press Enter .
9 How to set the modulated power for the Tunable Laser module:
a If power is not displayed in Watts, move to the [ P ] parameter and
press the [Power Unit] softkey.
b Move to < W >, using the cursor key, and press Enter .
c Move to the [ P ] parameter and press Enter .
d Enter 5.
e Change units to
μ
W, if necessary, using the [Unit+] or [Unit
-
] softkey.
f Press Enter .
10 How to set the modulation frequency for the Tunable Laser module:
a Select the [ Frequency ] parameter and press Enter .
b Enter 100.000 and press Enter .
11 For the Tunable Laser module, press the button beside the Optical
Output. The green LED should switch on to indicate that the laser is
now active.
You should notice that the power reading is approximately half the value
set on the Tunable Laser module. This is because the output is modulated
by a square wave with a 50% duty cycle.