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

被引：0
作者：
Zhang, Lin [1 ]
Wen, Jincheng [1 ]
Liu, Huailiang [1 ,3 ]
Zheng, Jiarong [1 ,3 ]
Hong, Chunquan [1 ,3 ]
Xiuquan [1 ,2 ,3 ,4 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China
[2] Guangdong Intelligent Robot Inst, Dongguan 523808, Peoples R China
[3] GZ Photon Technol Co Ltd, Dongguan 523808, Peoples R China
[4] Opt Valley Lab, Wuhan 430074, Hubei, Peoples R China
来源：
ADVANCED LASERS, HIGH-POWER LASERS, AND APPLICATIONS XIV | 2023年 / 12760卷
关键词：
Fiber lasers; high power lasers; high peak power; MOPA system; nanosecond laser; HIGH-AVERAGE-POWER; HIGH-ENERGY; LASER SYSTEM; AMPLIFIER;
D O I：
10.1117/12.2687236
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present the comprehensive elucidation of an exclusively fiber-based nanosecond Master Oscillator Power Amplifier (MOPA) laser system, integrating a 100-mu m-core ytterbium-doped fiber within the primary amplification stage and a 300-mu m-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.
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页数：8
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