I use double glued lens pairs to focus the laser. The initial settings are shown in Figure 1, and the pop results are shown in Figure 2
Figure 1
Figure 2
Next, we plan to separate the latter pair of doublets to improve the focusing quality. As a result, when a new air surface is inserted, we find that the pop beam becomes worse. As shown in Figure 3 and Figure 4
Figure 3
Figure 4
I am confused. Why POP simulation results of laser focusing system different?
Best answer by Hui Chen
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