8163A/B, 8164A/B, 8166A/B User’s Guide 139
Tunable Lasers 5
Figure 79 Setting Attenuation
What is Excessive Power ?
If the text ExP is displayed in a Tunable Laser channel, see Figure 80 on
page -140, you have set an output power level that is larger than the laser
diode can produce at the selected wavelength.