35
Set OPTICAL_POWER to 1 V
Repeat the following step five times
1. Set WAVELENGTH_TUNING to –9.5 V
2. Wait 1 s
3. Set WAVELENGTH_TUNING to 9.5 V
4. Wait 1 s
Set WAVELENGTH_TUNING to 0 V
The laser start-up procedure is finished.
3.3.1.2 Calibration
For every optical power level repeat the steps below. The method is illustrated in
Figure 3–2 Perform the start-up procedure
Set OPTICAL_POWER to the desired value. Measure the actual optical power
using a power meter.
Increase WAVELENGTH_TUNING monotonically between the calibration
points. Measure the actual wavelength using a wavemeter.
Perform the start-up procedure (see paragraph 3.3.1.1).
Set OPTICAL_POWER to the desired value.
Decrase WAVELENGTH_TUNING monotonically between the calibraton points.
1
2
3
4
5
6
8
7
10
9
Start-up point
Optical Power
Wavelength Tuning
Calibration points
Figure 3–2
Illustartion of the calibration sequence
Summary of Contents for PICO D
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