Generation of 1.8 MW, 68 fs pulses from a gain-managed nonlinear fiber laser

Ziheng Zhuang; Shan Wang; Weijia Luo; Di Lin; Jianping Li; Songnian Fu; Yuwen Qin

doi:10.1117/12.3047725

5 December 2024 Generation of 1.8 MW, 68 fs pulses from a gain-managed nonlinear fiber laser

Ziheng Zhuang, Shan Wang, Weijia Luo, Di Lin, Jianping Li, Songnian Fu, Yuwen Qin

Author Affiliations +

Proceedings Volume 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024); 1341812 (2024) https://doi.org/10.1117/12.3047725
Event: 15th International Conference on Information Optics and Photonics (CIOP2024), 2024, Xi’an, China

Abstract

Here we propose and demonstrate an all-normal-dispersion fiber laser operating within a gain-managed nonlinear amplification (GMNA) evolution regime. This laser configuration is capable of supporting the generation of stable, highenergy, linearly chirped ultrashort pulses with a nonlinear phase shift exceeding 50π. Utilizing a 5-meter dual-clad Ybdoped fiber with a core/cladding diameter of 30/250 μm as the gain medium, the laser directly generates ~1.4 ps pulses with an average power of 2.9 W at a repetition rate of 16.6 MHz, corresponding to a pulse energy of 174 nJ. The output spectrum exhibits 10-dB bandwidth of ~58 nm, spanning from 1043nm-1101nm. These output pulses can be externally compressed to ~68 fs using a pair of transmission gratings with a compression efficiency of ~83%, resulting in a peak power of ~1.8 MW. The beam quality factor (M²) was measured to ~1.2.

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

Citation Download Citation

Ziheng Zhuang, Shan Wang, Weijia Luo, Di Lin, Jianping Li, Songnian Fu, and Yuwen Qin "Generation of 1.8 MW, 68 fs pulses from a gain-managed nonlinear fiber laser", Proc. SPIE 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024), 1341812 (5 December 2024); https://doi.org/10.1117/12.3047725

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