15-mJ and high-peak-power nanosecond pulse based on all-fiber MOPA system

Lin Zhang; JinCheng Wen; Huailiang Liu; Jiarong Zheng; Chunquan Hong; Xiuquan Ma

doi:10.1117/12.2687236

27 November 2023 15-mJ and high-peak-power nanosecond pulse based on all-fiber MOPA system

Lin Zhang, JinCheng Wen, Huailiang Liu, Jiarong Zheng, Chunquan Hong, Xiuquan Ma

Proceedings Volume 12760, Advanced Lasers, High-Power Lasers, and Applications XIV; 1276017 (2023) https://doi.org/10.1117/12.2687236
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Conference Poster

Abstract

We present the comprehensive elucidation of an exclusively fiber-based nanosecond Master Oscillator Power Amplifier (MOPA) laser system, integrating a 100-μm-core ytterbium-doped fiber within the primary amplification stage and a 300- μm-core Quartz Block Head (QBH) delivery configuration. The laser system hinges upon a diode laser seed, yielding a pulse train with pulse duration of 50 ns and repetition rate of 30 kHz. Consequently, the resultant pulse profile exhibits a final full width at half-maximum (FWHM) of 8.8 ns, concomitantly achieving a pinnacle power output exceeding 1.5 MW. The average power output attains a magnitude of 456 W, concomitant with a maximal pulse energy of 15.2 mJ. These findings collectively underscore a noteworthy advancement in both average and peak power outputs, notably within the context of narrow pulse durations and low repetition rate regimes.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Lin Zhang, JinCheng Wen, Huailiang Liu, Jiarong Zheng, Chunquan Hong, and Xiuquan Ma "15-mJ and high-peak-power nanosecond pulse based on all-fiber MOPA system", Proc. SPIE 12760, Advanced Lasers, High-Power Lasers, and Applications XIV, 1276017 (27 November 2023); https://doi.org/10.1117/12.2687236

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