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1997
Conference Paper
Title
Fiber-coupling technique with micro step-mirrors for high-power diode laser bars
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 mu m core diameter. This technique comprises two micro step-mirrors for beam shaping. The overall efficiency from diode-laser to fiber is 71 per cent with 20 W cw laser power through the fiber.