115
Tunable Laser Sources
How to Perform a Wavelength Sweep
8 Move to [SWEEP CYCLES] and press ENTER.
9 Enter 0003 and press ENTER.
10 Move to [VSWEEP] and press ENTER.
11 Move to 5 nm/s, by using the cursor key, and press ENTER.
12 Press [Run Swp] to start the sweep.
13 A continuous sweep can end in two ways:
a when the sweep is completed, or
b when you press [Stop].
How to Perform a Manual Sweep
You can perform a manual sweep if you choose the <MANUAL>
sweep mode or if you press [Pause] during an automatic sweep. In a
manual sweep you choose when you want to perform each step of a
stepped sweep. You can choose to move forward or backward a
wavelength or to end the sweep.
To perform a manual wavelength sweep over the range 1510 nm to
1570 nm, three times, sweeping two ways, in 1 nm steps:
1 Move to the Tunable Laser channel and press [Details].
2 Move to [SWEEP MODE] and press ENTER.
3 Move to the <MANUAL>, by using the cursor key, and press
ENTER.
4 Perform steps 4 to 13 on page 112 to set the sweep parameters.
5 Press [Run Swp] to start the sweep. The screen in Figure 5-12
then appears.
6 You can:
• press [Next] to move on to the next wavelength step,
• press [Prev] to move on to the previous wavelength step, or
• press [Stop] to end the sweep.
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