Systems of fiber-coupled diode lasers as versatile sources of high-brightness radiation

L. Bartelt-Berger; U. Becker; Uwe Brauch; Christoph Fleig; Adolf Giesen; Bernd Luecke; Hans Opower; C. Schomburg; Michael Schubert; Reinhard Springer

doi:10.1117/12.281343

22 September 1997 Systems of fiber-coupled diode lasers as versatile sources of high-brightness radiation

L. Bartelt-Berger, U. Becker, Uwe Brauch, Christoph Fleig, Adolf Giesen, Bernd Luecke, Hans Opower, C. Schomburg, Michael Schubert, Reinhard Springer

Author Affiliations +

Proceedings Volume 3110, 10th Meeting on Optical Engineering in Israel; (1997) https://doi.org/10.1117/12.281343
Event: 10th Meeting on Optical Engineering in Israel, 1997, Jerusalem, Israel

Abstract

Incoherent superpositioning of radiation from a single-mode fiber bundle with 200 mW output power per fiber allows to realize power densities of 2 MW/cm². The total power being directly scalable with the number of fibers. With special optics for imaging the fiber-bundle endface onto the target instead of simply focusing it is possible to control the power density within that spot. Coherent superpositioning allows to further increase the power density and to direct the beam to a spot within the field of the incoherent superposition. Such systems could be useful for all kinds of applications requiring high-brightness radiation like cutting and welding or laser projection, printing plates, lithography, etc.

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L. Bartelt-Berger, U. Becker, Uwe Brauch, Christoph Fleig, Adolf Giesen, Bernd Luecke, Hans Opower, C. Schomburg, Michael Schubert, and Reinhard Springer "Systems of fiber-coupled diode lasers as versatile sources of high-brightness radiation", Proc. SPIE 3110, 10th Meeting on Optical Engineering in Israel, (22 September 1997); https://doi.org/10.1117/12.281343

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