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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Detalles Bibliográficos
Autores principales: Petrov, Andrey, Odnoblyudov, Maxim, Gumenyuk, Regina, Minyonok, Lidiya, Chumachenko, Andrey, Filippov, Valery
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7575578/
https://www.ncbi.nlm.nih.gov/pubmed/33082462
http://dx.doi.org/10.1038/s41598-020-74895-z
Descripción
Sumario: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.

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