A laser source (10) for emitting an output beam (12) along an output axis (12A) includes (i) a first laser module (16) that generates a first beam (16A); (ii) a second laser module (18) that generates a second beam (18A); (iii) a beam selector assembly (32); (iv) a first director assembly (24) that directs the first beam (16A) at the beam selector assembly (32); (v) a second director assembly (26) that directs the second beam (18A) at the beam selector assembly (32); and (vii) a control system (34) that directs power to the modules (16), (18). The beam selector assembly (32) moves between a first position in which the first beam (16A) is directed along the output axis (12A), and a second position in which the second beam (18A) is directed along the output axis (12A).