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Proceedings Paper

Pulse shaping in fiber lasers for high energy micromachining applications
Author(s): Doron Barness; Eitan Rowen; Nir Shalev; Jacob Lasri; Eran Inbar
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Paper Abstract

We demonstrate a fiber laser design capable of generating shaped pulses with up to 1mJ pulse energy while keeping near diffraction limited beam quality. By controlling both the temporal and spectral characteristics of the seeder in a MOPA configuration we were able to achieve long pulses in the 100’s nanosecond range without the limiting effect of gain depletion and without reaching the detrimental SBS threshold. With this configuration we demonstrated 1mJ rectangular pulses which prove highly efficient for micromachining applications over equally energetic higher peak power gain saturated pulses.

Paper Details

Date Published: 4 March 2015
PDF: 7 pages
Proc. SPIE 9344, Fiber Lasers XII: Technology, Systems, and Applications, 934427 (4 March 2015); doi: 10.1117/12.2079869
Show Author Affiliations
Doron Barness, Spectra Physics Tel-Aviv (Israel)
Eitan Rowen, Spectra Physics Tel-Aviv (Israel)
Nir Shalev, Spectra Physics Tel-Aviv (Israel)
Jacob Lasri, Spectra Physics, Tel-Aviv (Israel)
Eran Inbar, Spectra Physics Tel-Aviv (Israel)

Published in SPIE Proceedings Vol. 9344:
Fiber Lasers XII: Technology, Systems, and Applications
L. Brandon Shaw, Editor(s)

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