High Peak Power and High Beam Quality Fiber-Solid Hybrid Amplification Laser System

Yong, 汪勇 Wang; Bin, 刘斌 Liu; Zhibin, 叶志斌 Ye; Shuangfu, 徐霜馥 Xu; Chao, 唐超 Tang; Xiang, 张翔 Zhang; Feng, 郑峰 Zheng; Chong, 刘崇 Liu; Dong, 刘东 Liu; Zhen, 项震 Xiang

doi:10.3788/cjl201845.0401007

Cited by 3 publications

(1 citation statement)

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“…In 2017, Zhenao Bai reported a modelocked picosecond laser with 1 nJ pulse energy, 11.5 ps pulse duration and 80 MHz repetition rate, which was as the seed for Nd:YVO 4 amplifier [9]. Meanwhile, some world-renowned laser suppliers have produced related products, such as the 'LightWire FP200' picosecond laser of EKSPLA company with 9 ± 1 ps pulse duration and 40 mW average power under 1 MHz, which was used for a high brightness hybrid solid amplifier [10].…”

Section: Introductionmentioning

confidence: 99%

Fiber-solid hybrid end-pumped Nd:YVO₄ picosecond amplifier with high beam quality

Liu¹,

Liu²,

Yan³

et al. 2021

Laser Phys.

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In recent years, high-brightness picosecond lasers have been widely used in high-end precision processing, spectroscopy and high harmonic generation. To obtain higher power and excellent beam quality, it is an ideal solution to add a high-gain amplifier to the back end of the high-stability picosecond fiber or solid seed. In this article, a fiber-solid hybrid end-pumped Nd:YVO4 picosecond laser system with high beam quality is demonstrated. The influence of the self-developed picosecond fiber seed output characteristics on solid amplifiers has been studied in detail, including the energy, repetition rate and spectrum. After two-stage traveling wave amplifiers, the maximum 155 μJ single pulse energy is obtained with 20 kHz repetition rate, and the corresponding peak power reaches 14.9 MW with 10.4 ps pulse duration. Meanwhile, the beam quality factors under the maximum 18.4 W average power are measured to be M x 2 = 1.27 and M y 2 = 1.25, respectively.

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Section: Introductionmentioning

confidence: 99%

Fiber-solid hybrid end-pumped Nd:YVO₄ picosecond amplifier with high beam quality

Liu¹,

Liu²,

Yan³

et al. 2021

Laser Phys.

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High energy, high brightness picosecond master oscillator power amplifier with output power 65.5 W

Liu¹,

Jia²,

Song³

et al. 2020

Opt. Express

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In this article, it is demonstrated the generation of high pulse energy, high beam quality and high brightness mode-locked picosecond pulses from a compact Nd:YVO4 master oscillator power amplifier system. This system mainly consisted of a SESAM mode-locked picosecond seed generator and four-stage multi-pass amplifiers. A pulse picker was adopted prior to power amplifiers to efficiently reduce the pulse repetition rate. The maximum average output power of 65.5 W was obtained with a repetition rate of 496.85 kHz and a pulse duration of 16.9 ps, corresponding to a maximum pulse energy of 131.83 µJ and a peak power of 7.8 MW. While simultaneously, the output beam quality factors along the x axis and the y axis were measured to be Mx2=1.36 and My2=1.32, respectively, therefore, a brightness as high as 3.22 × 109 W·cm−2·Sr was achieved. As far as we all know, this is the highest brightness for a picosecond pulsed Nd:YVO4 MOPA laser at 1064 nm.

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500-kHz Level High Energy Double-Pass Nd:YVO4 Picosecond Amplifier with Optic–Optic Efficiency of 51%

Liu

Song

et al. 2019

Applied Sciences

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We have demonstrated a high pulse energy and high optic–optic efficiency double-pass picosecond (ps) master oscillator power amplifier system of 1064 nm at a pulse repetition rate of 500 kHz. A 500 kHz, 7.68 μJ picosecond laser is used as the seed laser. Through one stage double-pass traveling-wave amplifier, a maximum output power of 16.19 W at a pump power of 31.7 W is generated with the optic–optic efficiency of 51.07%. The output pulse duration is 17.6 ps, corresponding to the pulse energy of 32.38 μJ. The beam quality factor M 2 were measured to be 1.28 and 1.17 along the x, y axis direction, respectively.

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High Peak Power and High Beam Quality Fiber-Solid Hybrid Amplification Laser System

Cited by 3 publications

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Fiber-solid hybrid end-pumped Nd:YVO₄ picosecond amplifier with high beam quality

Fiber-solid hybrid end-pumped Nd:YVO₄ picosecond amplifier with high beam quality

High energy, high brightness picosecond master oscillator power amplifier with output power 65.5 W

500-kHz Level High Energy Double-Pass Nd:YVO4 Picosecond Amplifier with Optic–Optic Efficiency of 51%

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High Peak Power and High Beam Quality Fiber-Solid Hybrid Amplification Laser System

Cited by 3 publications

References 0 publications

Fiber-solid hybrid end-pumped Nd:YVO4 picosecond amplifier with high beam quality

Fiber-solid hybrid end-pumped Nd:YVO4 picosecond amplifier with high beam quality

High energy, high brightness picosecond master oscillator power amplifier with output power 65.5 W

500-kHz Level High Energy Double-Pass Nd:YVO4 Picosecond Amplifier with Optic–Optic Efficiency of 51%

Contact Info

Product

Resources

About

Fiber-solid hybrid end-pumped Nd:YVO₄ picosecond amplifier with high beam quality

Fiber-solid hybrid end-pumped Nd:YVO₄ picosecond amplifier with high beam quality