Recent Progresses in the Field of High Power Diode Lasers (Invited)

At the moment the available output power from a typical 200 μm emitter is about 2 W. Typical diode laser bars consist of about 20 emitters and deliver about 40 W to 50 W with life time of more than 10000 h. The beam quality after fast axis collimation is about M2=3 along the fast axis and 1500 along