Filter
Top Products
2-19
Making Measurements
Measuring Laser Separation
Channel separation
Suppose that you want to measure separation on a system having the
spectrum shown in the following figure.
The Agilent 86120C displays separation on this spectrum as shown in
the following figure. Notice that the 1541.747 nm laser line is selected
as the reference. It is shown in absolute units. The wavelengths and
powers of the remaining responses are shown relative to this refer-
ence. For example, the first response is 2.596 nm below the reference.
To determine channel spacing, simply read the relative wavelength
measurement of the laser lines immediately preceding and following
the reference. Use the , , and SELECT softkeys to change the ref-
erence laser line and read the channel spacing between each channel.