How to Modulate a Signal Tunable Lasers
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave
Multichannel System, Fourth Edition
119
8 Perform step 6 until you choose to press [Stop].
How to Modulate a Signal
There are two ways of modulating the amplitude of the optical output.
• Using the internal modulation, and
• using external modulation.
How to Use the Internal Modulation
The internal modulation is a square wave with a 50% duty cycle. You can set both
the amplitude and the frequency of this signal. The amplitude is set by the power
parameter. This is the maximum output power of the output signal; at the
minimum output power, no power is output.
Figure 76 Performing a Manual Sweep
Figure 77 The Modulated Signal
Output
Power
t
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