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3
Operating Instructions
How to Perform a Sweep
52
How to Set the Maximum Power for the Sweep Range
Pressing [Pmax/Swp] sets the power to the maximum for the selected
sweep range. Alternatively, you can set a power level in the way described
in
How to Set the Output Power of a CW Signal
[Pmax/Swp] ensures the power will be constant for the whole sweep.
There are three sweep modes:
•
<Stepped>, which dwells at wavelengths that are separated by a
certain step size,
•
<Continuous>, which sweeps continually at the speed you set, and
•
<Manual>, which you can run each step manually.
You cannot turn the laser off by pressing the Active hard key on the
NOTE
Tunable Laser front panel, while a wavelength sweep is running.
You can press [Stop] and, then, press the Active hard key on the Tunable
Laser front panel, to turn off the laser.
How to Execute a Stepped Sweep
To execute a stepped wavelength sweep over the range 1510 nm to 1570
nm, three times, sweeping two ways, in 1 nm steps, stopping for half a
second at each wavelength step:
1
Move to the Tunable Laser channel and press [Details].
2
Move to [Sweep Mode] and press Enter.
3
Move to the <Stepped> sweep mode and press Enter.
4
Move to [
5
Enter 1510.000 and press Enter.
6
Move to [l Stop] and press Enter.
7
Enter 1570.000, press Enter.
8
Move to [Cycles] and press Enter.
9
Enter 3 and press Enter.
10 Move to [Repeat Mode] and press Enter.
11 Move to <Twoway>, by using the cursor key, and press Enter.
12 Move to [Step] and press Enter.
13 Enter 1.000 and press Enter.
λ
Start] and press Enter.
Keysight 81960A Compact TLS Module User's Guide
on page 46. Pressing
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