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.

引用

页数：8

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