Abstract
Fiber-coupled laser diodes have become essential sources for fiber laser pumping and direct energy applications. A compact and high-brightness fiber-coupled system has been designed based on a significant beam shaping method. The laser-diode stack consists of eight mini-bars and is effectively coupled into a standard 100μm core diameter and NA=0.22 fiber. The simulative result indicates that the module will have an output power over 440W. Using this technique, compactness and high-brightness production of a fiber-coupled laser-diode module is possible.
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