Picosecond Yb-doped tapered fiber laser system with 1.26 MW peak power and 200 W average output power

We demonstrate a compact picosecond master-oscillator power-amplifier (MOPA) system based on an Yb-doped polarization-maintaining double-clad tapered fiber (T-DCF) delivering pulses with over 1.26 MW peak power and average output power up to 200 W preserving near diffraction limited beam quality. Th...

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Veröffentlicht in:	Scientific reports 2020-10, Vol.10 (1), p.17781-17781, Article 17781
Hauptverfasser:	Petrov, Andrey, Odnoblyudov, Maxim, Gumenyuk, Regina, Minyonok, Lidiya, Chumachenko, Andrey, Filippov, Valery
Format:	Artikel
Sprache:	eng
Schlagworte:	639/624/1020/1086 639/624/1020/1090 639/624/1020/1095 Humanities and Social Sciences multidisciplinary Multidisciplinary Sciences Science Science & Technology Science & Technology - Other Topics Science (multidisciplinary)
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Beschreibung
Zusammenfassung:	We demonstrate a compact picosecond master-oscillator power-amplifier (MOPA) system based on an Yb-doped polarization-maintaining double-clad tapered fiber (T-DCF) delivering pulses with over 1.26 MW peak power and average output power up to 200 W preserving near diffraction limited beam quality. The unique properties of an active tapered fiber enable to amplify the seed pulses directly with no need for applying of additional stretching technique. This simplified laser system can find the practical implementation in industrial micromachining.
ISSN:	2045-2322 2045-2322
DOI:	10.1038/s41598-020-74895-z