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87-W 1018-nm Yb-fiber ultrafast seeding source for cryogenic Yb: Yttrium lithium fluoride amplifier

: Hua, Y.; Liu, W.; Hemmer, M.; Zapata, L.E.; Zhou, G.; Schimpf, D.N.; Eidam, T.; Limpert, J.; Tünnermann, A.; Kärtner, F.X.; Chang, G.


Optics Letters 43 (2018), No.8, pp.1686-1689
ISSN: 0146-9592
Journal Article
Fraunhofer IOF ()

We demonstrate a compact and robust Yb-fiber master-oscillator power-amplifier system operating at 1018 nm with 2.5-nm bandwidth and 1-ns stretched pulse duration. It produces 87-W average power and 4.9-μJ pulse energy, constituting a powerful seed source for cryogenically cooled ultrafast Yb: yttrium lithium fluoride (Yb:YLF) amplifiers.