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Proceedings Paper

High power single-mode fiber laser and a multi-mode delivery cable
Author(s): Kosuke Kashiwagi; Takashi Kayahara; Yoshihiro Emori; Akira Fujisaki
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Paper Abstract

Over 500W output power Yb doped single-mode fiber laser demonstrates excellent beam quality of less than 1.1 M2 value. Use of single mode fiber as delivery cable enables small spot-size; however delivery length is limited by SRS in fiber. To mitigate this characteristic, use of multi-mode fiber for delivery is one of approach. We present our design of 500W single mode fiber laser and beam quality measurement of multi-mode delivery fiber. How they vary, how we can homogenize beam depend on different condition of connection style, etc. We also present material process results in different beam performance.

Paper Details

Date Published: 15 February 2012
PDF: 6 pages
Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 823728 (15 February 2012); doi: 10.1117/12.908256
Show Author Affiliations
Kosuke Kashiwagi, The Furukawa Electric Co., Ltd. (Japan)
Takashi Kayahara, The Furukawa Electric Co., Ltd. (Japan)
Yoshihiro Emori, The Furukawa Electric Co., Ltd. (Japan)
Akira Fujisaki, The Furukawa Electric Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 8237:
Fiber Lasers IX: Technology, Systems, and Applications
Eric C. Honea; Sami T. Hendow, Editor(s)

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