Incoherent Combination of High-Power, Multicore Fiber Laser Systems

In this work we will cover the basic considerations of incoherent combination of fiber laser systems and, in particular of multicore fibers, since these are ideal sources for this type of combination. Our analysis will have a special emphasis on what separates incoherent combination from its coherent counterparts. Additionally, we will discuss the scalability of the beam quality with the number and arrangement of the cores in a MCF, and we will compare the incoherently combined emission from a multicore fiber with that of a multimode fiber.