How does the beam combining work?

1

In the laser module (e.g. A40640), two laser beams are combined. The brochure shows combining of the two beams by a “plate”, which might be the physical reality only in the case of dichroitic combination or polarization combination. Thus, my question is whether the beam combining is realized by such a polarization or dichroitic combination or by another effect (which one)? Thanks, Stephan

2

polarization combination

3

Thank’s, Jim; I’m really happy with the physical understanding !-)
Greetings, Stephan