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Proceedings Paper

Concrete cutting using high-power fiber laser
Author(s): Kazuyoku Tei; Nriyuki Takeuchi; Daichi Sugimoto; Takashi Arisawa; Kazuya Jyosui; Naoomi Miyagawa; Tomoo Fujioka
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Paper Abstract

We have demonstrated the measurements of attenuation constant of a multi-mode fiber (300μm core diameter and 1km length) at 1070nm. The observed attenuation constant was below 0.7dB/km. The laser power of 5kW was coupled into the 1km fiber at 1070nm. The overall transmittance was 85 %. We observed the first Raman stokes in the transmitted laser spectrum. We demonstrated concrete cutting with a 4kW fiber laser at 1070nm. The demonstrated slab thickness was 100mm. This technique can be extended to thick concrete slabs more than 1m without laser power increasing.

Paper Details

Date Published: 23 February 2006
PDF: 8 pages
Proc. SPIE 6101, Laser Beam Control and Applications, 61011T (23 February 2006); doi: 10.1117/12.646364
Show Author Affiliations
Kazuyoku Tei, Tokai Univ. (Japan)
Nriyuki Takeuchi, Mikipulley Co. Ltd (Japan)
Daichi Sugimoto, Mikipulley Co. Ltd (Japan)
Takashi Arisawa, Japan Atomic Energy Research Institute (Japan)
Kazuya Jyosui, Institute for Applied Optics (Japan)
Naoomi Miyagawa, Institute for Applied Optics (Japan)
Tomoo Fujioka, Tokai Univ. (Japan)
Institute for Applied Optics (Japan)


Published in SPIE Proceedings Vol. 6101:
Laser Beam Control and Applications
Steven J. Davis; Alexis V. Kudryashov; Adolf Giesen; Detlef Nickel; Michael C. Heaven; Alan H. Paxton; Vladimir S. Ilchenko; J. Thomas Schriempf, Editor(s)

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