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The renaissance and bright future of fibre lasers

: Tünnermann, A.; Schreiber, T.; Röser, F.; Liem, A.; Höfer, S.; Zellmer, H.; Nolte, S.; Limpert, J.


Journal of Physics. B, Atomic, molecular and optical physics 38 (2005), No.9, pp.S681-S693
ISSN: 0022-3700
ISSN: 0953-4075
Journal Article
Fraunhofer IOF ()
crystal; doping additives; diffraction; solid state laser; stimulated emission; optical wavelength; photonic crystal; renaissance; solid state material; fiber laser

The first rare-earth-doped fibre lasers were operated in the early 1960s and produced a few milliwatts at a wavelength around 1 µm. For the next several decades, fibre lasers were little more than a low-power laboratory curiosity. Recently, however, fibre lasers have entered the realm of kilowatt powers with diffraction-limited beam quality. In this paper we review the reasons for this power evolution. Beyond this, we will discuss how the next generation of fibres, so-called photonic crystal fibres, enable upward power scaling and therefore open up the avenue to new performance levels of solid-state lasers.