ALL-FIBER SIDE-PUMPED TAPERED AMPLIFIER OF THE ps-PULSES
- Autores: Mikhailov E.K.1, Levchenko A.E.1, Velmiskin V.V.1, Zaushitsyna T.S.1, Lipatov D.S.2, Shirmankin A.V.3, Kamynin V.A.3, Likhachev M.E.1
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Afiliações:
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center of the Russian Academy of Sciences, Moscow, Russia
- G.G. Devyatykh Institute of Chemistry of High Purity Substances of the Russian Academy of Sciences, Nizhny Novgorod, Russia
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
- Edição: Volume 523, Nº 1 (2025)
- Páginas: 81-86
- Seção: ТЕХНИЧЕСКИЕ НАУКИ
- URL: https://journals.rcsi.science/2686-7400/article/view/309486
- DOI: https://doi.org/10.7868/S3034508125040122
- EDN: https://elibrary.ru/qlznwe
- ID: 309486
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Resumo
This paper presents the results of an optimization process conducted on an all-fiber ps-pulse amplifier with sub-MW peak power, operating at a wavelength of 1064 nm, with a final amplifying stage based on a ytterbium-doped tapered fiber. The double-cladded active fiber was counter-pumped through the side surface. Two tapered fibers, with maximum core and cladding diameters of 39/375 and 58/625 µm, were utilized (in both cases, the thin part of the tapered fibers was single-mode with a geometry of ~8/80 µm). The optimal profile of the pump-feeding fiber was determined, the high-power unstable fixation polymer was eliminated, and a tapered fiber with an additional narrowing at the output end was used to compensate the increased numerical aperture of the injected pump. As a result, 42 W of average power was obtained with 9 ps pulse amplification, and the maximum achieved peak power was 0.62 MW.
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Sobre autores
E. Mikhailov
Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center of the Russian Academy of Sciences, Moscow, Russia
Email: egor.mikhailov@fo.gpi.ru
A. Levchenko
Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center of the Russian Academy of Sciences, Moscow, Russia
Email: egor.mikhailov@fo.gpi.ru
V. Velmiskin
Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center of the Russian Academy of Sciences, Moscow, Russia
Email: egor.mikhailov@fo.gpi.ru
T. Zaushitsyna
Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center of the Russian Academy of Sciences, Moscow, Russia
Email: egor.mikhailov@fo.gpi.ru
D. Lipatov
G.G. Devyatykh Institute of Chemistry of High Purity Substances of the Russian Academy of Sciences, Nizhny Novgorod, Russia
Email: egor.mikhailov@fo.gpi.ru
A. Shirmankin
Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
Email: egor.mikhailov@fo.gpi.ru
V. Kamynin
Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
Email: egor.mikhailov@fo.gpi.ru
M. Likhachev
Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center of the Russian Academy of Sciences, Moscow, Russia
Autor responsável pela correspondência
Email: egor.mikhailov@fo.gpi.ru
Bibliografia
- Kraus M. et al. Microdrilling in steel using ultrashort pulsed laser beams with radial and azimuthal polarization // Optics express. 2010. V. 18. № 21. P. 22305–22313.
- Qi Y. et al. Generation of 46 W green-light by frequency doubling of 96 W picosecond unpolarized Yb-doped fiber amplifier // Optics & Laser Technology. 2018. V. 101. P. 419–424.
- Petrov A. et al. Picosecond Yb-doped tapered fiber laser system with 1.26 MW peak power and 200 W average output power // Scientific Reports. 2020. V. 10. № 1. 17781.
- Wang T. et al. Monolithic tapered Yb-doped fiber chirped pulse amplifier delivering 126 μJ and 207 MW femtosecond laser with near diffraction-limited beam quality // Frontiers of Optoelectronics. 2023. V. 16. № 1. 30.
- Li W. et al. Tapered active fiber simultaneously enabled 141 W high average and 1.3 MW high peak power via all-fiber and polarization-maintained picosecond amplifier // Optics & Laser Technology. 2022. V. 152. 108166.
- Bobkov K. et al. Monolithic Side-Pumped Amplifier Based on an Yb-Doped Tapered-Fiber and Yielding 0.53 MW 9.3 ps Pulses // Photonics. MDPI. 2022. V. 9. № 10. 771.
- Lei C. et al. Theoretical analysis of fused tapered side-pumping combiner for all-fiber lasers and amplifiers // Laser Technology for Defense and Security XIII. SPIE. 2017. V. 10192. P. 92–99.
- Lei C. et al. Taper-fused side pump combiner for all-fiber lasers and amplifiers: A review // Optics & Laser Technology. 2020. V. 130. 106353.
- Bobkov K. et al. Sub-MW peak power diffraction-limited chirped-pulse monolithic Yb-doped tapered fiber amplifier // Optics Express. 2017. V. 25. № 22. P. 26958–26972.
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