High efficiency, 41.6 W, 10 kHz picosecond output based on a Nd:YAG double-pass multi-folded Innoslab amplifier

Ma, Chao; Liu, Zhao; Liu, Ke; Yu, Yang; Wang, Xiaojun; Yang, Bo; Cui, Dafu; Peng, Qinjun

doi:10.1016/j.optlastec.2021.107767

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2024

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Cited by 4 publications

(1 citation statement)

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“…In order to maintain compactness and good beam quality, the Innoslab amplifier is believed to be an effective method to improving output energy [4]. Moreover, Innoslab amplifiers have many other advantages, including high gain, the lack of depolarization by birefringence, and high overlapping efficiency [5][6][7]. In the laser few years, many works have presented solid-state nanaosecond Innoslab lasers with high average power.…”

Section: Introductionmentioning

confidence: 99%

12.7 W, 2 kHz discrete path Nd:YAG Innoslab amplifier

Chen

Zhu²,

Wang³

et al. 2022

Thirteenth International Conference on Information Optics and Photonics (CIOP 2022)

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Section: Introductionmentioning

confidence: 99%

12.7 W, 2 kHz discrete path Nd:YAG Innoslab amplifier

Chen

Zhu²,

Wang³

et al. 2022

Thirteenth International Conference on Information Optics and Photonics (CIOP 2022)

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High beam quality chirped pulse amplification laser based on plane-convex hybrid cavity Innoslab amplifier

Gao

Guo

Gao

et al. 2024

Optics & Laser Technology

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Thin-disk multi-pass amplifier for kilowatt-class ultrafast lasers

Xu,

Liu,

Gao

et al. 2024

High Pow Laser Sci Eng

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We report on an improved ytterbium-doped yttrium aluminum garnet thin-disk multi-pass amplifier for kilowatt-level ultrafast lasers, showcasing excellent beam quality. At a repetition rate of 800 kHz, the 6.8 ps, 276 W seed laser is amplified up to an average power of 1075 W, corresponding to a pulse energy of 1.34 mJ. The 36-pass amplifier is designed as a compact mirror array in which the beam alternately propagates between the mirrors and the disk by a quasi-collimated state. We adopted a quasi-collimated propagation to confine stray and diffracted light by the slight curvature of the disk, which enables us to achieve an outstanding extraction efficiency of up to 57% with excellent beam quality in stable laser operation at high power. The beam quality at 1075 W was measured to be M2 < 1.51. Furthermore, stability testing was demonstrated with a root-mean-square power fluctuation of less than 1.67% for 10 min.

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High efficiency, 41.6 W, 10 kHz picosecond output based on a Nd:YAG double-pass multi-folded Innoslab amplifier

Cited by 4 publications

References 26 publications

12.7 W, 2 kHz discrete path Nd:YAG Innoslab amplifier

12.7 W, 2 kHz discrete path Nd:YAG Innoslab amplifier

High beam quality chirped pulse amplification laser based on plane-convex hybrid cavity Innoslab amplifier

Thin-disk multi-pass amplifier for kilowatt-class ultrafast lasers

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