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Proposal of an optical fiber scanner for high-speed and compact laser marking systems
Author(s): Y. Wakayama; T. Matsuda; S. Onoe; Y. Lee; H. Arimoto; Y. Sasago; K. Souma
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Paper Abstract

We propose an optical fiber scanner suitable for high-power industrial laser marking systems. The proposed optical scanner enables beam scanning by resonating the optical fiber end with an electric actuator. As our optical scanner is extremely compact and lightweight, high-speed operation can be expected compared with the conventional galvanometer-type optical scanner. In this paper, novel monitoring and compensation techniques of the beam scanning path utilizing a position-sensitive detector in order to compensate for the manufacturing errors of optical fiber scanners are discussed. We demonstrate that the beam can be scanned linearly at a resonance frequency of about 10 kHz by appropriately controlling the amplitude and phase difference of the applied voltage.

Paper Details

Date Published: 27 February 2019
PDF: 7 pages
Proc. SPIE 10911, High-Power Laser Materials Processing: Applications, Diagnostics, and Systems VIII, 109110R (27 February 2019); doi: 10.1117/12.2509489
Show Author Affiliations
Y. Wakayama, Hitachi, Ltd. (Japan)
T. Matsuda, Hitachi, Ltd. (Japan)
S. Onoe, Hitachi, Ltd. (Japan)
Y. Lee, Hitachi, Ltd. (Japan)
H. Arimoto, Hitachi, Ltd. (Japan)
Y. Sasago, Hitachi, Ltd. (Japan)
K. Souma, Hitachi Industrial Equipment Systems Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 10911:
High-Power Laser Materials Processing: Applications, Diagnostics, and Systems VIII
Stefan Kaierle; Stefan W. Heinemann, Editor(s)

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