Generation of 200 fs, 11 MW peak power optical vortex pulses from a few-mode Yb-doped fiber amplifier

Weijia Luo; Shan Wang; Ziheng Zhuang; Di Lin; Xiaoyang Guo; Xing Liu; Songnian Fu; Yuwen Qin

doi:10.1117/12.3047726

5 December 2024 Generation of 200 fs, 11 MW peak power optical vortex pulses from a few-mode Yb-doped fiber amplifier

Weijia Luo, Shan Wang, Ziheng Zhuang, Di Lin, Xiaoyang Guo, Xing Liu, Songnian Fu, Yuwen Qin

Author Affiliations +

Proceedings Volume 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024); 1341813 (2024) https://doi.org/10.1117/12.3047726
Event: 15th International Conference on Information Optics and Photonics (CIOP2024), 2024, Xi’an, China

Abstract

High-power and high-energy ultrafast optical vortex beams have recently gained considerable interest for practical applications in laser-based material processing. Here, we investigate the parabolic pulse amplification of linearly polarized optical vortex beams with controllable topological charges of l = ±1 utilizing a few-mode large mode area polarization-maintaining Yb-doped fiber (PM-YDF) amplifier system. It yields a maximum average output power of approximately ~14.8 W at a repetition rate of approximately ~3.7 MHz, corresponding to a single pulse energy of approximately ~4 μJ. The output optical vortex pulses can be externally de-chirped to approximately ~200 fs with a peak power of approximately ~11.2 MW.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Weijia Luo, Shan Wang, Ziheng Zhuang, Di Lin, Xiaoyang Guo, Xing Liu, Songnian Fu, and Yuwen Qin "Generation of 200 fs, 11 MW peak power optical vortex pulses from a few-mode Yb-doped fiber amplifier", Proc. SPIE 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024), 1341813 (5 December 2024); https://doi.org/10.1117/12.3047726

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