Beam combining of ytterbium fiber amplifiers (Invited)

Abstract

Fiber lasers are well suited to scaling to high average power using beam-combining techniques. For coherent combining, optical phase-noise characterization of a ytterbium fiber amplifier is required to perform a critical evaluation of various approaches to coherent combining. For wavelength beam combining, we demonstrate good beam quality from the combination of three fiber amplifiers, and we discuss system scaling and design trades between laser linewidth, beam width, grating dispersion, and beam quality.

© 2007 Optical Society of America

Coherent beam combining and phase noise measurements of ytterbium fiber amplifiers

Steven J. Augst, T. Y. Fan, and Antonio Sanchez
Opt. Lett. 29(5) 474-476 (2004)

Wavelength beam combining of ytterbium fiber lasers

S. J. Augst, A. K. Goyal, R. L. Aggarwal, T. Y. Fan, and A. Sanchez
Opt. Lett. 28(5) 331-333 (2003)

Beam quality and noise properties of coherently combined ytterbium doped single frequency fiber amplifiers

Henrik Tünnermann, Jan Hendrik Pöld, Jörg Neumann, Dietmar Kracht, Benno Willke, and Peter Weßels
Opt. Express 19(20) 19600-19606 (2011)

High-power coherent beam polarization combination of fiber lasers: progress and prospect [Invited]

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J. Opt. Soc. Am. B 34(3) A7-A14 (2017)

Spectral beam combining of Yb-doped fiber lasers with high efficiency

Sandro Klingebiel, Fabian Röser, Bülend Ortaç, Jens Limpert, and Andreas Tünnermann
J. Opt. Soc. Am. B 24(8) 1716-1720 (2007)