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Conferences > ASSL > 1997 > NA > NA6

Fiber-coupling technique with micro step-mirrors for high-power diode laser bars

Keming Du, M. Baumann, B. Ehlers, H. G. Treusch, and P. Loosen

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Abstract

A technique for coupling the output of a high-power diode laser bar into one multimode fiber with high efficiency, easy alignment requirements and low manufacturing costs is demonstrated using a single fiber with 400 μm core diameter. This technique comprises two micro step-mirrors for beam shaping. The overall efficiency from diode-laser to fiber is 71% with 20 W cw laser power through the fiber.

© 1997 Optical Society of America

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