A 33.2 W high beam quality chirped-pulse amplification-based femtosecond laser for industrial processing

Zhenao Bai; Zhenxu Bai; Xiaolong Sun; Yong Liang; Kun Wang; Duo Jin; Zhongwei Fan

doi:10.3390/ma13122841

A 33.2 W high beam quality chirped-pulse amplification-based femtosecond laser for industrial processing

Zhenao Bai, Zhenxu Bai, Xiaolong Sun, Yong Liang, Kun Wang, Duo Jin, Zhongwei Fan^*

^*Corresponding author for this work

MQ Photonics Research Centre

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

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Abstract

A photonic crystal fiber-based chirped pulse amplification delivering 272 fs pulses of 66.4 µJ energy at a repetition rate of 500 kHz is presented, resulting in an average/peak power of 33.2W/244 MW. A single grating is adopted for the pulse width stretching and compression, which leads to high-compactness and low cost of the system. The output beam is near-diffraction-limited (M² = 1.1 ± 0.05) with a power stability better than 0.5%. The cutting of alumina ceramic substrate and flexible printed circuit are demonstrated by using the laser system. The results indicate that the laser is competent for industrial applications.

Original language	English
Article number	2841
Pages (from-to)	1-7
Number of pages	7
Journal	Materials
Volume	13
Issue number	12
DOIs	https://doi.org/10.3390/ma13122841
Publication status	Published - 2 Jun 2020

Bibliographical note

Copyright © 2020, MDPI AG. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

Chirped pulse amplification
Femtosecond
Laser processing
Photonic crystal fiber

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10.3390/ma13122841Licence: CC BY

Publisher version (open access)Final published version, 1.33 MBLicence: CC BY

Cite this

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title = "A 33.2 W high beam quality chirped-pulse amplification-based femtosecond laser for industrial processing",

abstract = "A photonic crystal fiber-based chirped pulse amplification delivering 272 fs pulses of 66.4 µJ energy at a repetition rate of 500 kHz is presented, resulting in an average/peak power of 33.2W/244 MW. A single grating is adopted for the pulse width stretching and compression, which leads to high-compactness and low cost of the system. The output beam is near-diffraction-limited (M2 = 1.1 ± 0.05) with a power stability better than 0.5%. The cutting of alumina ceramic substrate and flexible printed circuit are demonstrated by using the laser system. The results indicate that the laser is competent for industrial applications.",

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AU - Bai, Zhenxu

AU - Sun, Xiaolong

AU - Liang, Yong

AU - Wang, Kun

AU - Jin, Duo

AU - Fan, Zhongwei

N1 - Copyright © 2020, MDPI AG. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2020/6/2

Y1 - 2020/6/2

N2 - A photonic crystal fiber-based chirped pulse amplification delivering 272 fs pulses of 66.4 µJ energy at a repetition rate of 500 kHz is presented, resulting in an average/peak power of 33.2W/244 MW. A single grating is adopted for the pulse width stretching and compression, which leads to high-compactness and low cost of the system. The output beam is near-diffraction-limited (M2 = 1.1 ± 0.05) with a power stability better than 0.5%. The cutting of alumina ceramic substrate and flexible printed circuit are demonstrated by using the laser system. The results indicate that the laser is competent for industrial applications.

AB - A photonic crystal fiber-based chirped pulse amplification delivering 272 fs pulses of 66.4 µJ energy at a repetition rate of 500 kHz is presented, resulting in an average/peak power of 33.2W/244 MW. A single grating is adopted for the pulse width stretching and compression, which leads to high-compactness and low cost of the system. The output beam is near-diffraction-limited (M2 = 1.1 ± 0.05) with a power stability better than 0.5%. The cutting of alumina ceramic substrate and flexible printed circuit are demonstrated by using the laser system. The results indicate that the laser is competent for industrial applications.

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KW - Laser processing

KW - Photonic crystal fiber

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A 33.2 W high beam quality chirped-pulse amplification-based femtosecond laser for industrial processing

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