The renaissance and bright future of fibre lasers

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Published 25 April 2005 2005 IOP Publishing Ltd
, , Citation A Tünnermann et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 S681 DOI 10.1088/0953-4075/38/9/016

0953-4075/38/9/S681

Abstract

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.

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10.1088/0953-4075/38/9/016