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Diode-pumped femtosecond oscillators using ultra-broad-band Yb-doped crystals and modelocked using low-temperature grown or ion implanted saturable-absorber mirrors

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F Druon, GJ Valentine, S Chénais, P Raybaut, F Balembois, P Georges, A Brun, Alan John Kemp, DJL Birkin, Wilson Sibbett, S Mohr, D Kopf, D Burns, A Courjaud, C Hönninger, F Salin, R Gaumé, A Aron, G Aka, B Viana & 2 more C Clerc, H Bernas

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Femtosecond modelocked lasers using new ytterbium-doped borate crystals (Yb:Sr3Y(BO3)(3), Yb: Ca4GdO(BO3)(3) and Yb: Ca4YO(BO3)(3)) are demonstrated. Pulse duration as short as 69 fs has been obtained. To modelock such lasers, fast saturable absorbers need to be used. Two different types of fast saturable absorbers have been studied: low-temperature-grown semiconductor mirrors ( SESAM) and high-energy-ion-implanted semiconductor Bragg reflectors (SBR). We demonstrated, for the. first time to our knowledge, that ion-implanted SBR can be used to modelock oscillators using Yb-doped materials.



Original languageEnglish
Pages (from-to)177-182
Number of pages6
JournalThe European Physical Journal - Applied Physics
Issue number3
Publication statusPublished - Dec 2002

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