IPG PHOTONICS | PULSE SHAPING SOFTWARE OPTION
7. In the Editing panel, select the “remove arc” tool , then click on the created arc, you will
notice that the arc is removed and replaced with a straight line.
8. In the Editing panel, click “Clear” to wipe the entire pulse chart, you will get a popup window with
the option to save the pulse before you remove the pulse you just created. Click “No” for this
demonstration.
9. In the Editing panel, click the “free hand” tool , then click and drag the mouse pointer across
the chart to create a random continuous shape. This tool will help in modeling a shape that is not
possible with the other tools.
Shifting a Pulse
The Modulation panel in PSG allows you to manipulate the sketched pulse shapes to create new
variations, this has many advantages, including saving time and achieving better symmetry.
1. Start by sketching a preliminary pulse, preferably an alternating one, such as a square or sine
wave.
2. In the Modulation panel, set a certain Emission Step percentage value, and then click Emission
Shift Up or Emission Shift Down to introduce an emission offset to the pulse.
3. In the Modulation panel, set a certain Time Step value, and then click Time Shift Right or
Time Shift Left to introduce a time offset to the pulse.
Please not that if the chart is exceeded, the pulse will be stored into Left or Right pulse buffers
(“LB” and “RB” located on the top right of the pulse chart). The corresponding buffer will change
to a green color if they contain pulse data.
4. In the Modulation panel, set a certain Emission Scale Ref percentage value, it should be the
effective zero point of your pulse to get the best result, for example if you are modulating a sine
wave, you would set it to be in the center point. Also, set an Emission Scale percentage value then
click Expand Emission or Compress Emission to scale effective emission with
respect to the reference point.
5. In the Modulation panel, set a certain Time Scale Ref value, it should be the effective zero point of
your pulse to get the best result. Also, set a Time Scale value then click Expand Time or
Compress Time to scale effective time with respect to the reference point.
Note: Because of the sample time constraint, scaling can be unsymmetrical, and there could be a
small range of ineffective scaling factors, all that is due to the sample approximation during the
calculations. It is strongly recommended to save the original pulse prior to modulating a pulse.
Pulse Comparison
It is useful to compare and contrast different variations of a pulse, especially when performing modulation
on a pulse. There are two ways to perform this comparison:
1. Using two instances of PSG: At least one of which has to be started in an Offline session, then the
two application windows can be compared side to side.
2. The Snapshot Interface: This interface allows comparison of two pulses on the same chart:
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